Properties of the Number 75266

Seventy-Five Thousand Two Hundred Sixty-Six

Basics

Value: 75265 → 75266 → 75267

Parity: even

Prime: No

Previous Prime: 75253

Next Prime: 75269

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 37633

Divisors: 1, 2, 37633, 75266

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010011000000010

Octal: 223002

Duodecimal: 37682

Hexadecimal: 12602

Square: 5664970756

Square Root: 274.346496241523

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 whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3). A111299

Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves. A245824

Matula-Goebel numbers of unlabeled binary rooted semi-identity trees. A339193

T(n,0) + T(n,1) + ... + T(n,n), T given by A026670. A26677

Number of length n+3 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs. A256818

Number of unit cubes that have a side on the surface of a p X p X p cube composed of p³ unit cubes, where p is the n-th prime. A261971

Numerator of the coefficient of xⁿ in log(-log(1-x)/x). A75266

The triangular sequence of symmetrical Lah numbers (A111596, A008297) : L(n, m) = (-1)ⁿ* binomial(n,k)*binomial(n-1, k-1)*( (n-k)! + (n-k)*(k-1)! ), with L(0,0) = 2, L(n,0) = L(n,n) = (-1)ⁿ. A156786