Properties of the Number 86491

Eighty-Six Thousand Four Hundred Ninety-One

Basics

Value: 86490 → 86491 → 86492

Parity: odd

Prime: Yes

Previous Prime: 86477

Next Prime: 86501

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 86491

Divisors: 1, 86491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10101000111011011

Octal: 250733

Duodecimal: 42077

Hexadecimal: 151db

Square: 7480693081

Square Root: 294.09352254002465

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

Crystal ball sequence for {E₆}* lattice. A8402

Primes of the form 10n² + 1. A201709

Primes containing nonprime digits (from 1 to 9) in their decimal expansion and whose digits are distinct, i.e., consisting of only digits 1, 4, 6, 8, 9. A323391

Array, by antidiagonals, arising in asymptotic approximation to the number of p-groups of order pⁿ. A152253

a(n) = 4*∑_{k = 0..2·n} binomial(n+k-1,k) + 3*∑_{k = 0..2·n} binomial(n+k-1,k)². A357673

Group the natural numbers such that the n-th group sum is divisible by prime(n): (1, 2, 3), (4, 5), (6, 7, 8, 9), (10, 11), (12, 13, 14, 15, 16, 17, 18, 19, 20, 21), ... Sequence contains the sum of the terms in the n-th group. A86491