Properties of the Number 72880

Seventy-Two Thousand Eight Hundred Eighty

Basics

Value: 72879 → 72880 → 72881

Parity: even

Prime: No

Previous Prime: 72871

Next Prime: 72883

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 5 × 911

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110010110000

Octal: 216260

Duodecimal: 36214

Hexadecimal: 11cb0

Square: 5311494400

Square Root: 269.9629604223513

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

Diagonal sums of triangle A096815. A212264

a(n) = 729·n² - 2·n. A158394

Number of partitions satisfying 0 < cn(2,5) + cn(3,5). A39897

A recurrence of order 6: a(1)=a(2)=a(3)=a(4)=a(5)=a(6)=1; a(n) = (a(n-1)² + a(n-2)² + a(n-3)² + a(n-4)² + a(n-5)²)/a(n-6). A72880