Properties of the Number 12911

Twelve Thousand Nine Hundred Eleven

Basics

Value: 12910 → 12911 → 12912

Parity: odd

Prime: Yes

Previous Prime: 12907

Next Prime: 12917

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 12911

Divisors: 1, 12911

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001001101111

Octal: 31157

Duodecimal: 757B

Hexadecimal: 326f

Square: 166693921

Square Root: 113.62658139713612

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes having only {1, 2, 9} as digits. A385776

Primes with 23 as smallest positive primitive root. A61335

a(n) = 2ⁿ - C(n,0) - C(n,1) - ... - C(n,5). A35038

Balanced primes of order four. A82079

a(n) = ∑_k=0..8 binomial(n,k). A8861

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d = 2, 4 or 6) and forming d-pattern=[6,2,4]; short d-string notation of pattern = [624]. A78853

Numbers whose least quadratic nonresidue (A020649) is 13. A25025

Primes p such that A001177(p) = (p-1)/5. A308798

5-Ramanujan primes; the interval (x/2,x] has at least n 4-Ramanujan primes for x >= a(n) but not for x = a(n)-1. A192823

a()=A037260 and its first [ A037261 ], 2nd [ A037262 ] and 3rd [ A037263 ] differences together include every number at most once and are monotonic and minimal. A37260