Properties of the Number 72505

Seventy-Two Thousand Five Hundred Five

Basics

Value: 72504 → 72505 → 72506

Parity: odd

Prime: No

Previous Prime: 72503

Next Prime: 72533

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 17 × 853

Divisors: 1, 5, 17, 85, 853, 4265, 14501, 72505

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101100111001

Octal: 215471

Duodecimal: 35B61

Hexadecimal: 11b39

Square: 5256975025

Square Root: 269.2675249635574

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

Numbers n for which there are exactly seven k such that n = k + (product of nonzero digits of k). A96928

Number of triangular partitions of n of order 4. A84446

Expansion of (1-x)^-1/(1+2·x²-x³). A77892

Strong pseudoprimes to base 98. A20324

Number of cyclotomic cosets of 7 mod 10ⁿ. A220019

a(n) = n / (LCM of divisors of n which are <= sqrt(n)). A72505