Properties of the Number 72520

Seventy-Two Thousand Five Hundred Twenty

Basics

Value: 72519 → 72520 → 72521

Parity: even

Prime: No

Previous Prime: 72503

Next Prime: 72533

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 7 ² × 37

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101101001000

Octal: 215510

Duodecimal: 35B74

Hexadecimal: 11b48

Square: 5259150400

Square Root: 269.2953768633988

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

Triangle read by rows: T(n,k), n >=1, 0 <= k <= C(n,k), = number of n X n symmetric positive semi-definite matrices with 2's on the main diagonal and 1's and 0's elsewhere and with k 1's above the diagonal. A83029

Numbers that are the sum of four third powers in exactly nine ways. A345154

Index of smallest Fibonacci number beginning with the n-th Fibonacci number other than itself. A72520