Properties of the Number -128761

One Hundred Twenty-Eight Thousand Seven Hundred Sixty-One

Basics

Value: -128762 → -128761 → -128760

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 128761

Divisors: 1, 128761

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11111011011111001

Octal: -373371

Duodecimal: -62621

Hexadecimal: -1f6f9

Square: 16579395121

Square Root: 358.8328301591146

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

One half of the number of permutations of [n] such that the differences have three runs with the same signs. A352

Primes that remain prime through 3 iterations of function f(x) = 8x + 3. A23292

Primes that are the sum of 101 consecutive primes. A215993

Number of (not necessarily maximal) cliques in the n X n queen graph. A295903