Properties of the Number 13256

Thirteen Thousand Two Hundred Fifty-Six

Basics

Value: 13255 → 13256 → 13257

Parity: even

Prime: No

Previous Prime: 13249

Next Prime: 13259

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 1657

Divisors: 1, 2, 4, 8, 1657, 3314, 6628, 13256

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001111001000

Octal: 31710

Duodecimal: 7808

Hexadecimal: 33c8

Square: 175721536

Square Root: 115.13470371699404

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 different equations that can be made by summing numbers from 1 to n and using every number not more than once. A161943

Triangle T(n,k,p,q,j) = T(n-1,k,p,q,j) + T(n-1,k-1,p,q,j) + (p·j+q)*prime(j)*T(n-2,k-1,p,q,j) with T(2,k,p,q,j) = prime(j) and (p,q,j) = (0,1,2), read by rows. A153516

Irregular triangle T(n,k), n>=1, 1<=k<=ceiling(n/2), read by rows: T(n,k) is the number of different ways to select k disjoint (nonempty) subsets from {1..n} with equal element sum. A196231

T(n,k)=1/3 the number of nXk 0..2 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors. A185559

Triangle of numbers of semi-meanders of order n with k components. A46726

Numbers k such that k and k+1 are both of the form p·q³ where p and q are distinct primes. A215173

Triangle, read by rows, where the n-th row is the first n terms of the n-th self-convolution of the sequence formed by flattening this triangle. A86606

The number of ways one can flip seven consecutive tails (or heads) when flipping a coin n times. A151975

Symmetric matrix based on A007598(n+1), by antidiagonals. A203003

Number of semi-meanders of order n with 4 components. A46723