Properties of the Number 259

Two Hundred Fifty-Nine

Basics

Value: 258 → 259 → 260

Parity: odd

Prime: No

Previous Prime: 257

Next Prime: 263

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 37

Divisors: 1, 7, 37, 259

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000011

Octal: 403

Duodecimal: 197

Hexadecimal: 103

Square: 67081

Square Root: 16.09347693943108

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

Lucky numbers. A959

Number of knapsack partitions of n. A108917

Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 25 (most significant digit on right). A61954

a(n) = 6·n + 1. A16921

Odd semiprimes: odd numbers divisible by exactly 2 primes (counted with multiplicity). A46315

Triangle of Mahonian numbers T(n,k): coefficients in expansion of ∏_i=0..n-1 (1 + x + ... + xⁱ), where k ranges from 0 to A000217(n-1). Also enumerates permutations by their major index. A8302

Number of Look-and-Say partitions of n; see Comments. A239455

Positive integers having distinct base-2 run lengths. A44813

Odd numbers of the form p·q where p and q are distinct primes. A46388

All primes that divide n are of the form prime(2k), where prime(k) is k-th prime. A66207