9000 (number)

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← 8999 9000 9001 →
Cardinalnine thousand
Ordinal9000th
(nine thousandth)
Factorization23 × 32 × 53
Greek numeral,Θ´
Roman numeralMX, or IX
Unicode symbol(s)MX, mx, IX, ix
Binary100011001010002
Ternary1101001003
Quaternary20302204
Quinary2420005
Senary1054006
Octal214508
Duodecimal526012
Hexadecimal232816
Vigesimal12A020
Base 366Y036

9000 (nine thousand) is the natural number following 8999 and preceding 9001.

In other fields

  • ISO 9000 is the ISO's standard for Quality Management System in production environments. This includes ISO 9001–9004.

Selected numbers in the range 9001–9999

9001 to 9099

9100 to 9199

  • 9103super-prime
  • 9126 – pentagonal pyramidal number[4]
  • 9139 – tetrahedral number[5]
  • 9180 – triangular number

9200 to 9299

  • 9216962
  • 9221 – Sophie Germain prime
  • 9224 – octahedral number[6]
  • 9241cuban prime of the form x = y + 1[7]
  • 9261 – 213, largest 4 digit perfect cube
  • 9272weird number[8]
  • 9283 – centered heptagonal number
  • 9293 – Sophie Germain prime, super-prime

9300 to 9399

9400 to 9499

9500 to 9599

  • 9539 – Sophie Germain prime, super-prime
  • 9551 – first prime followed by as many as 35 consecutive composite numbers
  • 9587 – safe prime, follows 35 consecutive composite numbers
  • 9591 – triangular number

9600 to 9699

  • 9601Proth prime
  • 9604982
  • 9619super-prime
  • 9629 – Sophie Germain prime
  • 9647 – centered heptagonal number
  • 9660 – ISO 9660 standard for CD-ROM file system
  • 9661super-prime, sum of nine consecutive primes (1049 + 1051 + 1061 + 1063 + 1069 + 1087 + 1091 + 1093 + 1097)
  • 9689 – Sophie Germain prime
  • 9699 – nonagonal number

9700 to 9799

  • 9721 – prime of the form 2p-1
  • 9730 – triangular number
  • 9739super-prime
  • 9743 – safe prime
  • 9791 – Sophie Germain prime

9800 to 9899

  • 9800 – member of a Ruth-Aaron pair (first definition) with 9801
  • 9801992, centered octagonal number, member of a Ruth-Aaron pair (first definition) with 9800
  • 9833super-prime
  • 9839 – safe prime
  • 9850 – decagonal number
  • 9855magic constant of n × n normal magic square and n-Queens Problem for n = 27.
  • 9857Proth prime
  • 9859super-prime
  • 9870 – triangular number
  • 9871 – balanced prime
  • 9880 – tetrahedral number[5]
  • 9887 – safe prime
  • 9899 – ISO 9899 standard for C programming language

9900 to 9999

  • 9901 – unique prime, sum of seven consecutive primes (1381 + 1399 + 1409 + 1423 + 1427 + 1429 + 1433)[3]
  • 9923super-prime, probably smallest certainly executable prime number on x86 MS-DOS [11]
  • 9949 – sum of nine consecutive primes (1087 + 1091 + 1093 + 1097 + 1103 + 1109 + 1117 + 1123 + 1129)
  • 9973super-prime, largest four-digit prime
  • 9999Kaprekar number, Repdigit

References






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