Properties of the Number 72765

Seventy-Two Thousand Seven Hundred Sixty-Five

Basics

Value: 72764 → 72765 → 72766

Parity: odd

Prime: No

Previous Prime: 72763

Next Prime: 72767

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 7 ² × 11

Divisors: 1, 3, 5, 7, 9, 11, 15, 21, 27, 33

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001110000111101

Octal: 216075

Duodecimal: 36139

Hexadecimal: 11c3d

Square: 5294745225

Square Root: 269.7498841519677

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 triangle related to the a(n) formulas of the rows of the ED4 array A167584. A167591

A partition product of Stirling₂ type [parameter k = -3] with biggest-part statistic (triangle read by rows). A157399

a(n) = (n+1)*(2·n)!/(2ⁿ*n!) = (n+1)*(2n-1)!!. A1193

Triangle read by rows: T(n,k) is the number of cycle-up-down permutations of {1,2,...,n} having k cycles (1<=k<=n). A186366

Numbers with exactly 4 distinct odd prime divisors {3,5,7,11}. A147577

Triangle T(m,s), m >= 0, 0 <= s <= m, arising in the computation of certain integrals. A59366

Partition number array, called M32(-3), related to A000369(n,m) = |S2(-3;n,m)| (generalized Stirling triangle). A143173

A certain partition array in Abramowitz-Stegun order (A-St order). A134144

Partition number array, called M32hat(-3)= 'M32(-3)/M3'= 'A143173/A036040', related to A000369(n,m)= |S2(-3;n,m)| (generalized Stirling triangle). A144279

A triangle related to the GF(z) formulas of the rows of the ED4 array A167584. A167594