Properties of the Number 72631

Seventy-Two Thousand Six Hundred Thirty-One

Basics

Value: 72630 → 72631 → 72632

Parity: odd

Prime: No

Previous Prime: 72623

Next Prime: 72643

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 37 × 151

Divisors: 1, 13, 37, 151, 481, 1963, 5587, 72631

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001101110110111

Octal: 215667

Duodecimal: 36047

Hexadecimal: 11bb7

Square: 5275262161

Square Root: 269.50139146208505

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) is the numerator of ∑_{primes p < n} 1/(n-p). A305700

Integers k such that 10^k+37 is a prime number. A135109

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. A317425

Number of n X n binary arrays with all ones connected only in a 1100-0111-0101 pattern in any orientation. A147217

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. A317429

Floor( n·log(n) ) mod n. A72631

a(n) = |{0 < k < n: m = φ(k)/2 + φ(n-k)/12 is an integer with 2^m + prime(m) prime}|, where φ(.) is Euler's totient function. A236344