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Properties of the Number 23256

Twenty-Three Thousand Two Hundred Fifty-Six

Basics

Value: 23255 → 23256 → 23257

Parity: even

Prime: No

Previous Prime: 23251

Next Prime: 23269

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 3 × 3 2 × 17 × 19

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 17, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101011011000

Octal: 55330

Duodecimal: 11560

Hexadecimal: 5ad8

Square: 540841536

Square Root: 152.499180325666

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

Triangle formed from odd-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials Un(x). Sometimes called Catalan's triangle. A39598
Number of permutations of [n+1] with exactly 1 increasing subsequence of length 3. A3517
a(n) = n*(n+1)*(n+2)*(n+3)/4. A33487
Coordination sequence for (2,3,7) tiling of hyperbolic plane. A265057
a(n) = 9·binomial(2n,n-4)/(n+5). A1392
If F(n) is the n-th Fibonacci number, then a(2n) = (F(2n+1) + F(n+2))/2 and a(2n+1) = (F(2n+2) + F(n+1))/2. A1224
The number of edges formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter. A358783
Coefficient of x5 in expansion of (1 + x + x2)n. A574
a(n) = floor(n*(n-1)*(n-2)*(n-3)/5). A11915
Alkane (or paraffin) numbers l(7,n). A5994