Properties of the Number 72921

Seventy-Two Thousand Nine Hundred Twenty-One

Basics

Value: 72920 → 72921 → 72922

Parity: odd

Prime: No

Previous Prime: 72911

Next Prime: 72923

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 109 × 223

Divisors: 1, 3, 109, 223, 327, 669, 24307, 72921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110011011001

Octal: 216331

Duodecimal: 36249

Hexadecimal: 11cd9

Square: 5317472241

Square Root: 270.0388860886521

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

Partial sums of A299256. A299262

a(1)=1; a(n) = a(n-1) + [sum of all decimal digits present so far in the sequence]. A72921