Properties of the Number 520

Five Hundred Twenty

Basics

Value: 519 → 520 → 521

Parity: even

Prime: No

Previous Prime: 509

Next Prime: 521

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 13

Divisors: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1000001000

Octal: 1010

Duodecimal: 374

Hexadecimal: 208

Square: 270400

Square Root: 22.80350850198276

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

Numbers that are the sum of 2 successive primes. A1043

Numbers that are the sum of 2 positive cubes. A3325

Number of partitions of n into nonzero triangular numbers. A7294

Multiples of 10: a(n) = 10·n. A8592

Numbers that are products of 5 primes (or 5-almost primes, a generalization of semiprimes). A14614

Sum of remainders of n mod k, for k = 1, 2, 3, ..., n. A4125

Indices k such that (1/3)*(prime(k)+prime(k+1)+prime(k+2)) is a prime. A64113

Sums of two distinct powers of 2. A18900

Number of condensed integer partitions of n. A239312

Sum of cubes of the digits of n written in base 10. A55012