Properties of the Number 72538

Seventy-Two Thousand Five Hundred Thirty-Eight

Basics

Value: 72537 → 72538 → 72539

Parity: even

Prime: No

Previous Prime: 72533

Next Prime: 72547

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 36269

Divisors: 1, 2, 36269, 72538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001101101011010

Octal: 215532

Duodecimal: 35B8A

Hexadecimal: 11b5a

Square: 5261761444

Square Root: 269.3287953413077

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 (undirected) paths in the ladder graph P₂ X P_n. A288516

Positive integers n such that prime(n+i) is a primitive root modulo prime(n+j) for any distinct i and j among 0, 1, 2, 3. A243839

a(n) = 36·n² - 8·n - 2 (n >=1). A304834

Erroneous version of A000040 (the primes). A72538