Properties of the Number -261877

Two Hundred Sixty-One Thousand Eight Hundred Seventy-Seven

Basics

Value: -261878 → -261877 → -261876

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 7 × 11 × 19 × 179

Divisors: 1, 7, 11, 19, 77, 133, 179, 209, 1253, 1463

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -111111111011110101

Octal: -777365

Duodecimal: -107671

Hexadecimal: -3fef5

Square: 68579563129

Square Root: 511.73919138561195

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

Numbers which are both lucky and pentagonal. A128511

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0001-1101-0111 pattern in any orientation. A147257