Properties of the Number -21260

Twenty-One Thousand Two Hundred Sixty

Basics

Value: -21261 → -21260 → -21259

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 1063

Divisors: 1, 2, 4, 5, 10, 20, 1063, 2126, 4252, 5315

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001100001100

Octal: -51414

Duodecimal: -10378

Hexadecimal: -530c

Square: 451987600

Square Root: 145.80809305384938

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..7 (n + k)². A276026

Pseudo-random numbers: gcc 2.6.3 version for 32-bit integers. A84276

a(0)=1; a(n) = sigma₂(n) + sigma₃(n). A92344

a(n) = sum of the origin-to-boundary graph-distances of all partitions of n. A368986