Properties of the Number 656

Six Hundred Fifty-Six

Basics

Value: 655 → 656 → 657

Parity: even

Prime: No

Previous Prime: 653

Next Prime: 659

Digit Sum: 17

Digital Root: 8

Palindrome: Yes

Factorization: 2 ⁴ × 41

Divisors: 1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010010000

Octal: 1220

Duodecimal: 468

Hexadecimal: 290

Square: 430336

Square Root: 25.612496949731394

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

Number of integer partitions of n with distinct differences between successive parts. A325325

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

a(n) = floor(3ⁿ / 2ⁿ). A2379

Numbers whose ternary expansion contains no 1's. A5823

Palindromic in bases 9 and 10. A29965

Palindromes in base 3 (written in base 10). A14190

Numbers k such that the k-th composition in standard order is strictly increasing. A333255

Number of double-free integer partitions of n. A323092

Palindromic in bases 3 and 10. A7633

Sums of distinct powers of 5. A33042