Properties of the Number 23409

Twenty-Three Thousand Four Hundred Nine

Basics

Value: 23408 → 23409 → 23410

Parity: odd

Prime: No

Previous Prime: 23399

Next Prime: 23417

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 17 ²

Divisors: 1, 3, 9, 17, 27, 51, 81, 153, 289, 459

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101101101110001

Octal: 55561

Duodecimal: 11669

Hexadecimal: 5b71

Square: 547981281

Square Root: 153

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

Sum of first n cubes; or n-th triangular number squared. A537

Number of perfect matchings (or domino tilings) in C₄ X P_n. A6253

a(n) = (4·n + 1)². A16814

a(n) = (1/4)*floor(n/2)*floor((n-1)/2)*floor((n-2)/2)*floor((n-3)/2). A28723

a(n) = (6·n+3)². A16946

T(n,k) = Number of n X k array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally. A189650

Numbers with prime factorization p²*q⁴. A189988

a(n) = (11·n + 10)². A17510

Perfect squares which are neither the sum nor the difference of two primes. A106573

a(n) = (8·n + 1)². A17078