Properties of the Number 72738

Seventy-Two Thousand Seven Hundred Thirty-Eight

Basics

Value: 72737 → 72738 → 72739

Parity: even

Prime: No

Previous Prime: 72733

Next Prime: 72739

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 449

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110000100010

Octal: 216042

Duodecimal: 36116

Hexadecimal: 11c22

Square: 5290816644

Square Root: 269.69983314789056

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

G.f.: A(x) = 1 + x·A(x)² / ( A(w·x)*A(w²*x) ), where w = exp(2*π*I/3). A216713

Numbers k such that the powerful part of the sum of divisors of k (A387726) is greater than or equal to k, and σ(k) is not itself a powerful number. A387729

Absolute value of second differences of A005849. A128194

X-projection of the tabular N X N -> N bijection A072733. A72738

Number of nX4 0..1 arrays with each 1 adjacent to 3 or 5 king-move neighboring 1s. A296153