Properties of the Number 64942

Sixty-Four Thousand Nine Hundred Forty-Two

Basics

Value: 64941 → 64942 → 64943

Parity: even

Prime: No

Previous Prime: 64937

Next Prime: 64951

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 19 × 1709

Divisors: 1, 2, 19, 38, 1709, 3418, 32471, 64942

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 1111110110101110

Octal: 176656

Duodecimal: 316BA

Hexadecimal: fdae

Square: 4217463364

Square Root: 254.83720293552116

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

Diagonal sums of number array A082043. A82045

The number of monic integer polynomials of degree n all of whose roots are distinct and of modulus at most 1. A280709

Number of 6-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero with no three beads in a row equal. A209347

Relative of Hofstadter Q-sequence: a(n) = max(0, n+32478) for n <= 0; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 0. A274058

T(n,k) is the number of n-bead necklaces labeled with numbers -k..k allowing reversal, with sum zero with no three beads in a row equal. A209344

Decimal numbers n such that after possibly prefixing leading 0's to n, the resulting number n' can be broken into 2 numbers of equal length, n' = xy, such that x²+y² = n (y may also have leading zeros). A64942

Number of n X n arrays of squares of integers with every (n-1) X (n-1) subblock summing to 6 and every element equal to at least one neighbor. A146198