Properties of the Number 42458

Forty-Two Thousand Four Hundred Fifty-Eight

Basics

Value: 42457 → 42458 → 42459

Parity: even

Prime: No

Previous Prime: 42457

Next Prime: 42461

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 13 × 23 × 71

Divisors: 1, 2, 13, 23, 26, 46, 71, 142, 299, 598

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010111011010

Octal: 122732

Duodecimal: 206A2

Hexadecimal: a5da

Square: 1802681764

Square Root: 206.05339113928702

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

Number of compositions of n whose differences of all degrees > 1 are nonzero. A325875

Solve 2ⁿ - 2 = 7(x² - x) + (y² - y) for (x,y) with x>0, y>0; sequence gives value of x. A76632

Numbers n such that σ(2*φ(n)) = 2*σ(n). A137733

Upper Beatty array of sqrt(2). A182638

Expansion of (1-x)^-1/(1-x+2·x²). A77876

Numerators of continued fraction convergents to sqrt(757). A42458