Properties of the Number 72440

Seventy-Two Thousand Four Hundred Forty

Basics

Value: 72439 → 72440 → 72441

Parity: even

Prime: No

Previous Prime: 72431

Next Prime: 72461

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 1811

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1811, 3622

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101011111000

Octal: 215370

Duodecimal: 35B08

Hexadecimal: 11af8

Square: 5247553600

Square Root: 269.1468000924403

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

a(n) = a(n-1) + a(n-2) + 1 for n>1, a(0)=0, a(1)=5. A22310

3-smooth numbers k with decimal digits <= 3. A72440