Properties of the Number -51280

Fifty-One Thousand Two Hundred Eighty

Basics

Value: -51281 → -51280 → -51279

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 5 × 641

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1100100001010000

Octal: -144120

Duodecimal: -25814

Hexadecimal: -c850

Square: 2629638400

Square Root: 226.45087767549057

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

"Erase or triple": list of the successive integers that produce the next "altitude" record (see the comments section). A300150

G.f. A(x) satisfies: 1 = ∑_n>=0 ( (1 + x·A(x)²)ⁿ - A(x) )ⁿ. A303927

Numerators of e.g.f. sec(arccosh(x)) = cosec(arcsinh(x)). A102073

Numbers such that the largest prime factor equals the sum of the 4th power of the other prime factors. A244344