Properties of the Number 62721

Sixty-Two Thousand Seven Hundred Twenty-One

Basics

Value: 62720 → 62721 → 62722

Parity: odd

Prime: No

Previous Prime: 62701

Next Prime: 62723

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 23 × 101

Divisors: 1, 3, 9, 23, 27, 69, 101, 207, 303, 621

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111010100000001

Octal: 172401

Duodecimal: 30369

Hexadecimal: f501

Square: 3933923841

Square Root: 250.4416099612842

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) = a(n-1) + a(n-6), with a(i) = 1 for i = 0..5. A5708

(6n+5)-th terms of expansion of 1/(1 - x - x⁶). A99242

Expansion of 1/(1 - x⁶ - x⁷ - x⁸ - ...). A17900

a(n) = 3ⁿ mod n³. A66607

Expansion of 1/(1-2·x+2·x²+x³). A77944

a(n) = 80·n² + 1. A158776

Expansion of 1/(1+2·x+2·x²-x³). A77992

a(n) is the smallest b >= 2 such that b^6·2ⁿ - b^3·2ⁿ + 1 is prime. A298206

a(n) = ∑_{k=0..floor(n/2)} binomial(3·n-5·k-1,k). A373653

a(n) = ∑_{k=0..floor(n/3)} binomial(2·n-5·k-1,k). A373654