Properties of the Number 23490

Twenty-Three Thousand Four Hundred Ninety

Basics

Value: 23489 → 23490 → 23491

Parity: even

Prime: No

Previous Prime: 23473

Next Prime: 23497

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 5 × 29

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101111000010

Octal: 55702

Duodecimal: 11716

Hexadecimal: 5bc2

Square: 551780100

Square Root: 153.26447729333762

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

Maximum second Zagreb index of maximal 3-degenerate graphs with n vertices. A372025

Triangle read by rows: T(n,k) is the number of multisets of k ternary words with a total of n letters. A275414

a(n) = floor( n*(n-1)*(n-2)*(n-3)/28 ). A11938

Numbers m such that m = ∑_i=x..y i = (10^k)*y + x, where 0 <= x < y, 0 <= x < 10^k for some positive integers k. A186076

Number of unordered unilabeled-bilabeled increasing trees. A261002

Number of (n+1) X (n+1) -7..7 symmetric matrices with every 2 X 2 subblock having sum zero and three distinct values. A211442

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood. A270452

n-th non-Lucas number plus Fibonacci(n + 1). A23490

Numbers k such that [V(4,1,k)/4] = floor(cosh(k log(sqrt(3)+2))/2) = A004526(A001075(k)) is a prime. A198196