Properties of the Number 72909

Seventy-Two Thousand Nine Hundred Nine

Basics

Value: 72908 → 72909 → 72910

Parity: odd

Prime: No

Previous Prime: 72907

Next Prime: 72911

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 8101

Divisors: 1, 3, 9, 8101, 24303, 72909

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110011001101

Octal: 216315

Duodecimal: 36239

Hexadecimal: 11ccd

Square: 5315722281

Square Root: 270.0166661522951

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

a(n) = 81·n² + 9. A157888

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 60. A31738

Numbers n such that prime(n) contains a substring of all the prime digits in order, i.e., "2357". A295708

Addends k > 0 such that the polynomial x² + x + k produces a record of its Hardy-Littlewood Constant. A331940

Least k>0 such that n+k is squarefree. A72909