9000 (number)

"9,000" redirects here. For other uses, see 9000 (disambiguation).

← 8999 9000 9001 →
List of numbers Integers ← 0 1k 2k 3k 4k 5k 6k 7k 8k 9k →
Cardinal	nine thousand
Ordinal	9000th (nine thousandth)
Factorization	23 × 32 × 53
Greek numeral	,Θ´
Roman numeral	MX, or IX
Unicode symbol(s)	MX, mx, IX, ix
Binary	100011001010002
Ternary	1101001003
Senary	1054006
Octal	214508
Duodecimal	526012
Hexadecimal	232816

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

Selected numbers in the range 9001–9999

9001 to 9099

• 9009 – centered cube number
• 9025 – 95², centered octagonal number
• 9029 – Sophie Germain prime
• 9041 – super-prime
• 9045 – triangular number
• 9059 – Sophie Germain prime
• 9072 – decagonal number
• 9077 – Markov number
• 9091 – unique prime

9100 to 9199

• 9103 – super-prime
• 9126 – pentagonal pyramidal number
• 9139 – tetrahedral number
• 9175 – smallest (provable) generalized Sierpiński number in base 10: 9175*10ⁿ+1 is always divisible by one of the prime numbers {7, 11, 13, 37}.
• 9180 – triangular number

9200 to 9299

• 9216 – 96²
• 9221 – Sophie Germain prime
• 9224 – octahedral number
• 9241 – cuban prime of the form x = y + 1
• 9261 – 21³, largest 4 digit perfect cube
• 9272 – weird number
• 9283 – centered heptagonal number
• 9293 – Sophie Germain prime, super-prime

9300 to 9399

• 9316 – triangular number
• 9319 – super-prime
• 9334 – nonagonal number
• 9349 – Lucas prime, Fibonacci number
• 9371 – Sophie Germain prime
• 9376 – 1-automorphic number
• 9397 – balanced prime

9400 to 9499

• 9403 – super-prime
• 9409 – 97², centered octagonal number
• 9419 – Sophie Germain prime
• 9439 – completes the twelfth prime quadruplet set
• 9453 – triangular number
• 9455 – square pyramidal number
• 9457 – decagonal number
• 9461 – super-prime, twin prime
• 9467 – safe prime
• 9473 – Sophie Germain prime, balanced prime, Proth prime
• 9479 – Sophie Germain prime

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

• 9601 – Proth prime
• 9604 – 98²
• 9619 – super-prime
• 9629 – Sophie Germain prime
• 9647 – centered heptagonal number
• 9661 – super-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
• 9739 – super-prime
• 9743 – safe prime
• 9791 – Sophie Germain prime

9800 to 9899

• 9800 – member of a Ruth-Aaron pair (first definition) with 9801
• 9801 – 99², centered octagonal number, member of a Ruth-Aaron pair (first definition) with 9800
• 9833 – super-prime
• 9839 – safe prime
• 9850 – decagonal number
• 9855 – magic constant of n × n normal magic square and n-Queens Problem for n = 27.
• 9857 – Proth prime
• 9859 – super-prime
• 9870 – triangular number
• 9871 – balanced prime
• 9880 – tetrahedral number
• 9887 – safe prime

9900 to 9999

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