Properties of the Number 23491

Twenty-Three Thousand Four Hundred Ninety-One

Basics

Value: 23490 → 23491 → 23492

Parity: odd

Prime: No

Previous Prime: 23473

Next Prime: 23497

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 ² × 139

Divisors: 1, 13, 139, 169, 1807, 23491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101111000011

Octal: 55703

Duodecimal: 11717

Hexadecimal: 5bc3

Square: 551827081

Square Root: 153.26773959317075

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) = n³ - n² - 2·n + 1. A123972

Denominators of continued fraction convergents to sqrt(93). A41167

S-perfect numbers. A118372

Numbers k such that ∑_{d∣k, d<k, d not occurring before} d > k. A181487

Numbers k such that k and k+1 are both S-abundant numbers (A181487). A364861

a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 1) and d(n) = (n-th non-Lucas number). A23491

Table read by antidiagonals: T(n,k) (n >= 3, k >= 1) is the number of vertices formed in a regular n-gon by straight line segments when connecting the n corner vertices to the points dividing the sides into k equal parts. A354544