Properties of the Number 42690

Forty-Two Thousand Six Hundred Ninety

Basics

Value: 42689 → 42690 → 42691

Parity: even

Prime: No

Previous Prime: 42689

Next Prime: 42697

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 1423

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 1423, 2846

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011011000010

Octal: 123302

Duodecimal: 20856

Hexadecimal: a6c2

Square: 1822436100

Square Root: 206.61558508495918

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 k such that 2·k+1, 4·k+1, 8·k+1 and 16·k+1 are primes. A124412

G.f. A(x) satisfies 1 = ∑_n=-oo..+oo x^2·n * (xⁿ - A(x))^3·n+1. A380677

Row sums of triangle A059037. A59040

Numbers which have more different digits than their cubes. A61374

Numerators of continued fraction convergents to sqrt(875). A42690