Properties of the Number 23408

Twenty-Three Thousand Four Hundred Eight

Basics

Value: 23407 → 23408 → 23409

Parity: even

Prime: No

Previous Prime: 23399

Next Prime: 23417

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 7 × 11 × 19

Divisors: 1, 2, 4, 7, 8, 11, 14, 16, 19, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101101101110000

Octal: 55560

Duodecimal: 11668

Hexadecimal: 5b70

Square: 547934464

Square Root: 152.99673199124223

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) = n*(n+1)*(4·n+5)/6. A16061

Numbers k such that k+1 and 3·k+1 are perfect squares. A45899

Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1. A228126

Numbers which are the sum of two positive cubes and divisible by 11. A101852

a(n) = 3·a(n-1) + 3·a(n-2) - a(n-3); a(0) = 1, a(1) = 0, a(2) = 3. a(n) = 4*{a(n-1)+(-1)ⁿ}-a(n-2); a(0) = 1, a(1) = 0. A120892

Largest k > 1 such that (sum of digits of kⁿ)*(sum of digits of kⁿ⁺¹) = k, or 0 if no such k exists. A130181

Denominators a(n) of Pythagorean approximations b(n)/a(n) to sqrt(3). A195499

For n > 5, a(n) = 15·a(n-1) - 15·a(n-2) + a(n-3); initial terms are 1, 3, 8, 120, 1680. A51047

Engel expansion of sinh(1/2). A68379

a(n) = 4·a(n-1) - 2·a(n-2) for n > 1; a(0) = 3, a(1) = 14. A164304