Properties of the Number 11807

Eleven Thousand Eight Hundred Seven

Basics

Value: 11806 → 11807 → 11808

Parity: odd

Prime: Yes

Previous Prime: 11801

Next Prime: 11813

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11807

Divisors: 1, 11807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111000011111

Octal: 27037

Duodecimal: 69BB

Hexadecimal: 2e1f

Square: 139405249

Square Root: 108.66002024663901

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

Smallest number of complexity n: smallest number requiring n 1's to build using + and *. A5520

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. A298770

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A317871

Primes p such that there is no Carmichael number pqr, p<q<r q, r primes. A51663

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299567

Primes congruent to 4 mod 37. A142113

Primes congruent to 7 mod 59. A142734

(1/2)*A206803. A206804

Expansion of exp( ∑_{n >= 1} A005259(n)*xⁿ/n ). A267220

a(n) is smallest safe prime (A005385) such that a(n) + 12·n is the next safe prime, i.e., x = (a(n) - 1)/2 and x + 6·n are closest Sophie Germain primes. A59327