Properties of the Number 72745

Seventy-Two Thousand Seven Hundred Forty-Five

Basics

Value: 72744 → 72745 → 72746

Parity: odd

Prime: No

Previous Prime: 72739

Next Prime: 72763

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 14549

Divisors: 1, 5, 14549, 72745

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001110000101001

Octal: 216051

Duodecimal: 36121

Hexadecimal: 11c29

Square: 5291835025

Square Root: 269.71281022598833

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

T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s. A295253

Row sums of triangle A049424. A49427

Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s. A295249

Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s. A295250

Product of the members of pairs of primes (p, q) with p < q and such that, for some integer k, (p+q)/2 = 2^k and p > 2^k-1. A72745