Properties of the Number 86561

Eighty-Six Thousand Five Hundred Sixty-One

Basics

Value: 86560 → 86561 → 86562

Parity: odd

Prime: Yes

Previous Prime: 86539

Next Prime: 86573

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 86561

Divisors: 1, 86561

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101001000100001

Octal: 251041

Duodecimal: 42115

Hexadecimal: 15221

Square: 7492806721

Square Root: 294.21250823172016

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

Row sums of triangle A117260. A117261

Primes p such that A000041(p)+p are also prime numbers. A163151

Primes that can be formed by concatenating 2^a and 3^b. A68801

SanD-68 primes p: such that p+d is also prime and sum of digits A007953(p(p+d)) = d, with d = 68. A307474

Smallest beastly prime in base n: smallest prime p with a base-n expansion containing the substring 666. A286342

Primes such that x¹⁶ = 2 has a solution in Z/pZ, but x³² = 2 does not. A373468

Duplicate of A083790. A86561