Properties of the Number 67725

Sixty-Seven Thousand Seven Hundred Twenty-Five

Basics

Value: 67724 → 67725 → 67726

Parity: odd

Prime: No

Previous Prime: 67723

Next Prime: 67733

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 7 × 43

Divisors: 1, 3, 5, 7, 9, 15, 21, 25, 35, 43

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000100010001101

Octal: 204215

Duodecimal: 33239

Hexadecimal: 1088d

Square: 4586675625

Square Root: 260.24027359346206

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

T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally. A232149

Numbers k such that 2·k-1, 4·k-1, 6·k-1 and 8·k-1 are primes. A124487

Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally. A232147

Number of 3Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally. A232151

a(n) = 3·n² + 6·n. A67725