Properties of the Number -655051

Six Hundred Fifty-Five Thousand Fifty-One

Basics

Value: -655052 → -655051 → -655050

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 661 × 991

Divisors: 1, 661, 991, 655051

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10011111111011001011

Octal: -2377313

Duodecimal: -2770B7

Hexadecimal: -9fecb

Square: 429091812601

Square Root: 809.3522101038583

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

Composite numbers k == 5, 7 (mod 12) such that 3^(k-1/2) == -1 (mod k). A375918

Semiprimes of the form (4·n + 1)*(6·n + 1) = 24·n² + 10·n + 1. A255584

Numbers k such that k + googol is a lower twin prime. A133281

Pentagonal numbers (A000326) that are also brilliant numbers (A078972). A113941

Numbers k > 2 such that 3^k-1 == 1 (mod k) and gcd(k, 2^k-1-1) = 1. A306144