Properties of the Number 560

Five Hundred Sixty

Basics

Value: 559 → 560 → 561

Parity: even

Prime: No

Previous Prime: 557

Next Prime: 563

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 5 × 7

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

Today's Target

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Representations

Binary: 1000110000

Octal: 1060

Duodecimal: 3A8

Hexadecimal: 230

Square: 313600

Square Root: 23.664319132398465

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

Tetrahedral (or triangular pyramidal) numbers: a(n) = C(n+2,3) = n*(n+1)*(n+2)/6. A292

a(n) = n*(n+3)/2. A96

Octagonal numbers: n*(3·n-2). Also called star numbers. A567

Generalized octagonal numbers: k*(3·k-2), k=0, +- 1, +- 2, +-3, ... A1082

Irregular triangle of multinomial coefficients, read by rows (version 1). A36040

Triangle T(n,k) read by rows: multinomial coefficients for the partitions of n listed in Abramowitz-Stegun order, 1 <= k <= A000041(n). A36038

Triangle whose (i,j)-th entry is binomial(i,j)*2^i-j. A38207

a(n) = 4·a(n-1) - 2·a(n-2) with a(0) = 1, a(1) = 4. A7070

a(n) = floor(n²/3). A212

Numbers m such that ∑_k=1..m (<1/2 + k·r> - <k·r>) = 0, where r=sqrt(2) and < > denotes fractional part. A194368