Properties of the Number 72175

Seventy-Two Thousand One Hundred Seventy-Five

Basics

Value: 72174 → 72175 → 72176

Parity: odd

Prime: No

Previous Prime: 72173

Next Prime: 72211

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 2887

Divisors: 1, 5, 25, 2887, 14435, 72175

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111101111

Octal: 214757

Duodecimal: 35927

Hexadecimal: 119ef

Square: 5209230625

Square Root: 268.65405264019375

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) = [xⁿ] ∏_k=1..n (1 - (n - k + 1)*x^k). A303189

Numbers k such that 2·3^k - 5 is prime. A57910

Number of ways to tile an n X n square with 1 X 1 squares and (n-2) X 2 vertical or horizontal rectangles. A347636

a(1)=1, a(2)=2, a(n) = a(n-1) + 1 - 2·sign(a(n-2)) for n>2. A72175