30,000
30,000 (thirty thousand) is the natural number that comes after 29,999 and before 30,001.
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← 0 [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] | ||||
| Cardinal | thirty thousand | |||
| Ordinal | 30000th (thirty thousandth) | |||
| Factorization | 24 × 3 × 54 | |||
| Greek numeral | ||||
| Roman numeral | XXX | |||
| Binary | 1110101001100002 | |||
| Ternary | 11120110103 | |||
| Octal | 724608 | |||
| Duodecimal | 1544012 | |||
| Hexadecimal | 753016 | |||
Selected numbers in the range 30001–39999
30001 to 30999
- 30029 – primorial prime
- 30030 – primorial[1]
- 30203 – safe prime
- 30240 – harmonic divisor number[2]
- 30323 – Sophie Germain prime and safe prime
- 30420 – pentagonal pyramidal number[3]
- 30694 – open meandric number
- 30941 – first base 13 repunit prime
31000 to 31999
- 31116 – octahedral number[4]
- 31337 – cousin prime, pronounced elite, an alternate way to spell 1337, an obfuscated alphabet made with numbers and punctuation, known and used in the gamer, hacker and BBS cultures.
- 31395 – square pyramidal number
- 31397 – prime number followed by a record prime gap of 72, the first above 52[5]
- 31721 – start of a prime quadruplet[6]
- 31929 – Zeisel number[7]
32000 to 32999
- 32043 – smallest number whose square is pandigital.
- 32045 – can be expressed as a sum of two squares in more ways than any smaller number[8]
- 32760 – harmonic divisor number[2]
- 32761 – 1812, centered hexagonal number
- 32767 – 215 − 1, largest positive value for a signed (two's complement) 16-bit integer on a computer.
- 32768 – 215, maximum absolute value of a negative value for a signed (two's complement) 16-bit integer on a computer.
- 32800 – pentagonal pyramidal number[3]
- 32993 – Leyland number[9]
33000 to 33999
34000 to 34999
- 34560 – 5 superfactorial[12]
- 34841 – start of a prime quadruplet[6]
- 34969 – favorite number of the Muppet character Count von Count [13]
35000 to 35999
- 35720 – square pyramidal number
- 35840 – number of ounces in a long ton (2,240 pounds)
- 35890 – tribonacci number[14]
- 35899 – alternating factorial[15]
- 35937 – 333, chiliagonal number[16]
- 35964 – digit-reassembly number
36000 to 36999
- 36100 – sum of the cubes of the first 19 positive integers
- 36594 – octahedral number[4]
37000 to 37999
- 37378 – semi-meandric number[17]
- 37634 – third term of the Lucas–Lehmer sequence
- 37666 – Markov number[11]
- 37926 – pentagonal pyramidal number[3]
38000 to 38999
- 38024 – square pyramidal number
- 38416 – 144
- 38962 – Kaprekar number[18]
References
- "Sloane's A002110 : Primorial numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A001599 : Harmonic or Ore numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A005900 : Octahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- Weisstein, Eric W. "Prime Gaps". MathWorld.
- Sloane, N. J. A. (ed.). "Sequence A007530". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- "Sloane's A051015 : Zeisel numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- Sloane, N. J. A. (ed.). "Sequence A088959". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A000129 : Pell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A002559 : Markoff (or Markov) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A000178 : Superfactorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Why was 34,969 Count von Count's magic number?". BBC News. 2012-08-30. Retrieved 2012-08-31.
- "Sloane's A000073 : Tribonacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A005165 : Alternating factorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A195163 : 1000-gonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A000682 : Semimeanders". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A006886 : Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
- "Sloane's A000078 : Tetranacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
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