Properties of the Number 516

Five Hundred Sixteen

Basics

Value: 515 → 516 → 517

Parity: even

Prime: No

Previous Prime: 509

Next Prime: 521

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 43

Divisors: 1, 2, 3, 4, 6, 12, 43, 86, 129, 172

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000000100

Octal: 1004

Duodecimal: 370

Hexadecimal: 204

Square: 266256

Square Root: 22.715633383201094

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

Refactorable numbers: number of divisors of k divides k. Also known as τ numbers. A33950

Number of rooted trees with n vertices in which vertices at the same level have the same degree. A3238

Triangle T(n,k) 0<=k<n : Number of compositions of n with k adjacent equal parts. A106356

Sums of two distinct powers of 2. A18900

Number of partitions of n in which no part occurs just once. A7690

Record gaps between primes. A5250

Untouchable numbers, also called nonaliquot numbers: impossible values for the sum of aliquot parts function (A001065). A5114

Multiples of 12. A8594

Nonprime numbers k such that binomial(k+p,k) mod k = 1, where p=10. A133630

Coordination sequence for hexagonal close-packing. A7899