Properties of the Number 5121

Five Thousand One Hundred Twenty-One

Basics

Value: 5120 → 5121 → 5122

Parity: odd

Prime: No

Previous Prime: 5119

Next Prime: 5147

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 569

Divisors: 1, 3, 9, 569, 1707, 5121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010000000001

Octal: 12001

Duodecimal: 2B69

Hexadecimal: 1401

Square: 26224641

Square Root: 71.56116265125938

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) = ∑_{d divides n} q(d), where q(d) = A000009 = number of partitions of d into distinct parts. A47966

Sum of 11 positive 9th powers. A4800

Numbers that are the sum of 6 positive 10th powers. A4806

a(n) = n·2^n-1 + 1. A5183

a(0) = 6; for n>0, a(n) = 2·a(n-1) - 1. A83575

Reve's puzzle: number of moves needed to solve the Towers of Hanoi puzzle with 4 pegs and n disks, according to the Frame-Stewart algorithm. A7664

Number of integer partitions of n where the parts have the same mean as the distinct parts. A360243

Number of ways of writing n as a sum of 9 nonnegative cubes. A173682

Revenant numbers: numbers k such that k multiplied by the product of all its digits contains k as a substring. A328095

T(n, k) = 2^k-1*(k + 2·n) - n + 1, array read by descending antidiagonals. A47858