Properties of the Number 2558

Two Thousand Five Hundred Fifty-Eight

Basics

Value: 2557 → 2558 → 2559

Parity: even

Prime: No

Previous Prime: 2557

Next Prime: 2579

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 1279

Divisors: 1, 2, 1279, 2558

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111111110

Octal: 4776

Duodecimal: 1592

Hexadecimal: 9fe

Square: 6543364

Square Root: 50.57667446560717

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 obtained by reinterpreting base-2 representation of n in primorial base: a(0) = 0, a(2n) = A276154(a(n)), a(2n+1) = 1 + A276154(a(n)). A276156

Numbers n such that n²⁰⁴⁸ + 1 is prime (a generalized Fermat prime). A88361

Number of polyominoes with n cells that have the symmetry group D₈. A142886

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 24. A51965

a(n) = 2·n² + 3·n + 3. A33816

Composite and every divisor (except for 1) contains the digit 2. A62664

Irregular triangle T(n,k) read by rows: T(n,k) is the number of compositions of n with k descents, n>=0, 0<=k<=floor(n/3). A238344

Number of integer partitions of n whose run-lengths are neither weakly increasing nor weakly decreasing. A332641

Denominators of continued fraction convergents to sqrt(13). A41019

Irregular triangle read by rows: T(n,k) (0 <= k <= n²) are coefficients of exact wrapping probability for site percolation on an n X n 2D square lattice with periodic boundary conditions. This is for the probability that it wraps around the vertical dimension. A366463