Properties of the Number 52666

Fifty-Two Thousand Six Hundred Sixty-Six

Basics

Value: 52665 → 52666 → 52667

Parity: even

Prime: No

Previous Prime: 52639

Next Prime: 52667

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 17 × 1549

Divisors: 1, 2, 17, 34, 1549, 3098, 26333, 52666

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100110110111010

Octal: 146672

Duodecimal: 2658A

Hexadecimal: cdba

Square: 2773707556

Square Root: 229.49074055394914

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

a(n) = 2ⁿ - binomial(n, floor(n/2)). A45621

a(n) = 4ⁿ - binomial(2·n,n). A68551

Number of n X 2 0..1 arrays with row sums equal and column sums unequal to adjacent columns. A202736

binomial(2n,n) - (2n)^π(n), where π(n) is the number of primes <= n. A220314

Even-indexed terms of A247984, a sequence motivated by generalized quadrangles. A246800

Constant terms of congruences derived from a permutation polynomial motivated by generalized quadrangles. A247984

Number of n-step random walks on a line starting from the origin and returning to it at least once. A307768

a(n) is the length of the disturbed prefix after n steps of the iterative process defined in the Comments. A387572

Number of Boolean functions on n inputs with representing polynomial of max degree n. A37267

Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 and no column sum 0. A254973