Properties of the Number -157642

One Hundred Fifty-Seven Thousand Six Hundred Forty-Two

Basics

Value: -157643 → -157642 → -157641

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 23 ² × 149

Divisors: 1, 2, 23, 46, 149, 298, 529, 1058, 3427, 6854

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110011111001010

Octal: -463712

Duodecimal: -7728A

Hexadecimal: -267ca

Square: 24851000164

Square Root: 397.0415595375376

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) = ∑_{k=0..floor(n/4)} (-1)^k * binomial(n-1-3·k,n-4·k) * binomial(2·k,k). A360315

Expansion of ∏_k>=1 1/(1 - x^k)^A050985(k). A301597