Properties of the Number 72668

Seventy-Two Thousand Six Hundred Sixty-Eight

Basics

Value: 72667 → 72668 → 72669

Parity: even

Prime: No

Previous Prime: 72661

Next Prime: 72671

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 37 × 491

Divisors: 1, 2, 4, 37, 74, 148, 491, 982, 1964, 18167

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101111011100

Octal: 215734

Duodecimal: 36078

Hexadecimal: 11bdc

Square: 5280638224

Square Root: 269.5700280075662

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

Row sums in triangle A081994. A81997

Consider primitive pairs of integers (b, c) with b < 0 such that x⁵ + b·x + c = 0 is irreducible and solvable by radicals: sequence gives values of b. A371557

a(1) = 1, a(2) = 1, a(n) = sum of τ(n) previous terms, where τ(n) is the number of divisors of n. A87549

Numbers one less than composite numbers. A72668