Properties of the Number 42568

Forty-Two Thousand Five Hundred Sixty-Eight

Basics

Value: 42567 → 42568 → 42569

Parity: even

Prime: No

Previous Prime: 42557

Next Prime: 42569

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 17 × 313

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 313, 626

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011001001000

Octal: 123110

Duodecimal: 20774

Hexadecimal: a648

Square: 1812034624

Square Root: 206.32013958894075

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) = a(n-1) + 64·a(n-2), a(0)=1, a(1)=8. A158798

a(n) is the number of smallest parts in the overpartitions of n having odd smallest part. A335730

Numbers k such that sigma₂(k² + 1) == 0 (mod k). A360105

Average θ series of odd unimodular lattices of dimension 10 (multiplied by 5). A29812

Numerators of continued fraction convergents to sqrt(813). A42568