Properties of the Number 16811

Sixteen Thousand Eight Hundred Eleven

Basics

Value: 16810 → 16811 → 16812

Parity: odd

Prime: Yes

Previous Prime: 16787

Next Prime: 16823

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 16811

Divisors: 1, 16811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000110101011

Octal: 40653

Duodecimal: 988B

Hexadecimal: 41ab

Square: 282609721

Square Root: 129.6572404457229

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 p whose period of reciprocal equals (p-1)/5. A56210

Primes p such that the multiplicative order of 2 modulo p is (p-1)/5. A1135

Coefficients of Airey's converging factor. A1662

Primes of the form 7^k + 4. A104065

Primes p such that 2p²-1 and 3p²-2 are also prime. A213078

Primes having only {1, 6, 8} as digits. A385782

Primes p such that q = p+d (with d >= 6) is the next prime and both p and q are Sophie Germain primes. A128825

a(n) = 10·n² + 1. A158187

Numbers at the start of a run of 2 or more consecutive primes that are Sophie Germain primes. A339474

Primes of the form 4·k-1 such that 8·k-1 and 16·k-1 are also primes. A101791