Properties of the Number 72620

Seventy-Two Thousand Six Hundred Twenty

Basics

Value: 72619 → 72620 → 72621

Parity: even

Prime: No

Previous Prime: 72617

Next Prime: 72623

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 3631

Divisors: 1, 2, 4, 5, 10, 20, 3631, 7262, 14524, 18155

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001101110101100

Octal: 215654

Duodecimal: 36038

Hexadecimal: 11bac

Square: 5273664400

Square Root: 269.480982631428

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

Number of ways to place 3 nonattacking zebras on a 3 X n board. A172221

Least positive integer k such that prime(prime(k)), prime(prime(k·n)), prime(p) and prime(q) form a 4-term arithmetic progression for some pair of primes p and q. A261462

Number of nX6 0..1 arrays with every element equal to 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A298893

Table read by antidiagonals: T(n,k) (n >= 3, k >= 0) is the number of cells in a regular n-gon after k generations of mitosis. A350000

T(n,k)=Number of nXk 0..1 arrays with every element equal to 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. A298895

Permutation of natural numbers obtained from the permutation A072089 (zero-based). A72620