Properties of the Number 42981

Forty-Two Thousand Nine Hundred Eighty-One

Basics

Value: 42980 → 42981 → 42982

Parity: odd

Prime: No

Previous Prime: 42979

Next Prime: 42989

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 14327

Divisors: 1, 3, 14327, 42981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011111100101

Octal: 123745

Duodecimal: 20A59

Hexadecimal: a7e5

Square: 1847366361

Square Root: 207.31859540330674

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) = n³ + 3·n + 1. A5491

Powers of e^1/e rounded up. A107586

Numbers n such that μ(n) + μ(n+1) + μ(n+2) + μ(n+3) + μ(n+4) + μ(n+5) + μ(n+6) = 6. A82967

Ceiling((n+1/n)³). A197773

Number of degree-n irreducible polynomials over GF(2) with trace = 1 and subtrace = 0. A42981