Properties of the Number 86531

Eighty-Six Thousand Five Hundred Thirty-One

Basics

Value: 86530 → 86531 → 86532

Parity: odd

Prime: Yes

Previous Prime: 86509

Next Prime: 86533

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 86531

Divisors: 1, 86531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001000000011

Octal: 251003

Duodecimal: 420AB

Hexadecimal: 15203

Square: 7487613961

Square Root: 294.16152025715394

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

Numbers that are the sum of six fourth powers in seven or more ways. A345564

Numbers that are the sum of six fourth powers in exactly seven ways. A345819

Numerators of continued fraction convergents to sqrt(883). A42706

Prime numbers in their order of occurrence and generated by A119751, the sequence of odd numbers defined recursively by a(1)=1 and a(i) + a(j) + 1 is prime for all i,j. A119753

Prime numbers p such that π(p) + 2·p is a square. A104783

a(n) is the start of the first occurrence of exactly n consecutive zeroless primes (A038618). A384793

Lesser of twin primes p1 such that p1·p2+-6 are prime numbers. A174955

Primes of the form 2·k² + 3. A201473

Primes of the form 8n² + 3. A201611

a(1) = 9; a(n+1) is the least odd composite number not already used such that (a(n+1)+a(n))/2 is prime. A86531