Properties of the Number -157421

One Hundred Fifty-Seven Thousand Four Hundred Twenty-One

Basics

Value: -157422 → -157421 → -157420

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 ² × 1301

Divisors: 1, 11, 121, 1301, 14311, 157421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110011011101101

Octal: -463355

Duodecimal: -77125

Hexadecimal: -266ed

Square: 24781371241

Square Root: 396.76315353117155

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)} C(n-3·k,k+1). A98578

Let P(k) = floor(k/2). Start with n, apply P repeatedly until reach 1. a(n) = concatenation of numbers obtained. A83177