30000 (number) - Selected Numbers

Selected Numbers

  • 30000 – round number
  • 30029 – primorial prime
  • 30030 – primorial
  • 30240 – harmonic divisor number
  • 30420 – pentagonal pyramidal number
  • 30694 – open meandric number
  • 31116 – octahedral number
  • 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
  • 31721 – start of a prime quadruplet
  • 31929 – Zeisel number
  • 32043 – smallest number whose square is pandigital.
  • 32045 – can be expressed as a sum of two squares in more ways than any smaller number
  • 32760 – harmonic divisor number
  • 32761 –, centered hexagonal number
  • 32767 –, largest positive value for a signed (two's complement) 16-bit integer on a computer.
  • 32768 –, maximum absolute value of a negative value for a signed (two's complement) 16-bit integer on a computer.
  • 32800 – pentagonal pyramidal number
  • 32993 – Leyland number
  • 33461 – Pell number, Markov number
  • 33511 – square pyramidal number
  • 33781 – octahedral number
  • 34841 – start of a prime quadruplet
  • 34969 – favorite number of the Muppet character Count von Count
  • 35720 – square pyramidal number
  • 35840 – number of ounces in a long ton (2,240 pounds)
  • 35890 – tribonacci number
  • 35899 – alternating factorial
  • 35937 – chiliagonal number
  • 36100 – sum of the cubes of the first 19 positive integers
  • 36594 – octahedral number
  • 37378 – semi-meandric number
  • 37666 – Markov number
  • 37926 – pentagonal pyramidal number
  • 38024 – square pyramidal number
  • 38962 – Kaprekar number
  • 39559 – octahedral number
  • 39648 – tetranacci number

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