Properties of the Number 81534

Eighty-One Thousand Five Hundred Thirty-Four

Basics

Value: 81533 → 81534 → 81535

Parity: even

Prime: No

Previous Prime: 81533

Next Prime: 81547

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 107 × 127

Divisors: 1, 2, 3, 6, 107, 127, 214, 254, 321, 381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111001111110

Octal: 237176

Duodecimal: 3B226

Hexadecimal: 13e7e

Square: 6647793156

Square Root: 285.5415906658783

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

Number of exact 3-colored partitions such that no adjacent parts have the same color. A262445

Triangle read by rows: coefficients in an asymptotic expansion of the n-th prime. A200265

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 1), (0, 0, 1), (1, 0, 1), (1, 1, 0)}. A151125

Numbers k such that 1 + 2 ... + k divides lcm(1,2,...,k), or, in other words, lcm(1,2,...,k) is a multiple of the k-th triangular number. A81534