Properties of the Number 23217

Twenty-Three Thousand Two Hundred Seventeen

Basics

Value: 23216 → 23217 → 23218

Parity: odd

Prime: No

Previous Prime: 23209

Next Prime: 23227

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 71 × 109

Divisors: 1, 3, 71, 109, 213, 327, 7739, 23217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101010110001

Octal: 55261

Duodecimal: 11529

Hexadecimal: 5ab1

Square: 539029089

Square Root: 152.37125713204574

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

Average of three successive primes squared, (prime(n)²+prime(n+1)²+prime(n+2)²)/3, n>=3. A75893

Expansion of 1/(1-x²-x³+x⁷-x⁸+x¹⁰). A174577

An eighth of the product of three integers surrounding the (n+1)-st prime, minus half of the product of the 3 numbers surrounding n+1. A141535

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood. A273311

Number of n X n symmetric binary matrices with each 1 adjacent to exactly 2 horizontally, vertically or diagonally neighboring 1s. A191344

Primes p such that 5·p + 2 is also prime. A23217

Number of (n+1)X(1+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise. A235527