Properties of the Number 53121

Fifty-Three Thousand One Hundred Twenty-One

Basics

Value: 53120 → 53121 → 53122

Parity: odd

Prime: No

Previous Prime: 53117

Next Prime: 53129

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 17707

Divisors: 1, 3, 17707, 53121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100111110000001

Octal: 147601

Duodecimal: 268A9

Hexadecimal: cf81

Square: 2821840641

Square Root: 230.47993405066742

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 triangle related to the a(n) formulas for the rows of the ED2 array A167560. A167565

The fifth left hand column of triangle A167565. A168304

Discriminants of totally real cubic fields in which every norm-positive unit is totally positive. A329769

a(n) = floor(1/(1-s(n))) where s(n) = ∑_k=1..n φ(k)/k·log(2^k/(2^k-1)). φ(k) is the Euler totient function A000010(k). A383024

Catalan triangle (with 0's) read by rows. A53121