Properties of the Number 81533

Eighty-One Thousand Five Hundred Thirty-Three

Basics

Value: 81532 → 81533 → 81534

Parity: odd

Prime: Yes

Previous Prime: 81527

Next Prime: 81547

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 81533

Divisors: 1, 81533

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011111001111101

Octal: 237175

Duodecimal: 3B225

Hexadecimal: 13e7d

Square: 6647630089

Square Root: 285.53983960211224

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

Lexicographically largest strictly increasing sequence of primes for which the continued square root map produces Feigenbaum's constant δ = 4.6692016... (A006890). A257809

Primes that remain prime through 3 iterations of function f(x) = 3x + 4. A23278

Primes p such that the multiplicative order of 2 modulo p is (p-1)/11. A152311

Number of (n+1) X 2 binary arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors. A186454

Sum of terms in row n of A081532. A81533