Properties of the Number 72480

Seventy-Two Thousand Four Hundred Eighty

Basics

Value: 72479 → 72480 → 72481

Parity: even

Prime: No

Previous Prime: 72469

Next Prime: 72481

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁵ × 3 × 5 × 151

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101100100000

Octal: 215440

Duodecimal: 35B40

Hexadecimal: 11b20

Square: 5253350400

Square Root: 269.22109872742146

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

S(n,k) an additive decomposition of the Springer number (generalized Euler number), (triangle read by rows). A154343

Values of m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,63. A65699

a(n) = 4·n*(21·n - 26). A263229

a(n) = 5·n⁴ - 6·n² + 1. Column 4 of A378066. A378064

Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,27. A64250

Shadow transform of factorials A000142. A72480

a(n) = least k such that the prime tower factorizations of k and k+1 both contain the n-th prime. A286068