Properties of the Number 42580

Forty-Two Thousand Five Hundred Eighty

Basics

Value: 42579 → 42580 → 42581

Parity: even

Prime: No

Previous Prime: 42577

Next Prime: 42589

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 2129

Divisors: 1, 2, 4, 5, 10, 20, 2129, 4258, 8516, 10645

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011001010100

Octal: 123124

Duodecimal: 20784

Hexadecimal: a654

Square: 1813056400

Square Root: 206.3492185592182

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 walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, 0, 1), (1, -1, 0), (1, 0, 1), (1, 1, -1)}. A150577

Numerators of continued fraction convergents to sqrt(819). A42580

Number of length n+5 0..2 arrays with no six consecutive terms having the maximum of any two terms equal to the minimum of the remaining four terms. A249954