Properties of the Number 86857

Eighty-Six Thousand Eight Hundred Fifty-Seven

Basics

Value: 86856 → 86857 → 86858

Parity: odd

Prime: Yes

Previous Prime: 86851

Next Prime: 86861

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 86857

Divisors: 1, 86857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001101001001

Octal: 251511

Duodecimal: 42321

Hexadecimal: 15349

Square: 7544138449

Square Root: 294.71511668049874

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

a(n) is the position of the first occurrence of n³ in the concatenation of the positive integers in decimal representation. A290787

Primes of the form 20·k² + 36·k + 17. A154419

Number of squarefree words of length n in an 8-ary alphabet, with new values 0..7 introduced in increasing order. A215074

a(n) = (prime(n) + prime(n+2))² + prime(n+1)². A348569

T(n,k) = Number of squarefree words of length n in a (k+1)-ary alphabet, with new values 0..k introduced in increasing order. A215075

a(0) = 0, a(1) = 1; for n > 1, a(n) = (a(n-1) + a(n-2) + 1)². A86857