Properties of the Number 15230

Fifteen Thousand Two Hundred Thirty

Basics

Value: 15229 → 15230 → 15231

Parity: even

Prime: No

Previous Prime: 15227

Next Prime: 15233

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 1523

Divisors: 1, 2, 5, 10, 1523, 3046, 7615, 15230

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11101101111110

Octal: 35576

Duodecimal: 8992

Hexadecimal: 3b7e

Square: 231952900

Square Root: 123.40988615179904

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

T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal. A233928

Number of subsets A of {1,2,...,n} with |A+A| = |A-A|. A118544

Number of unlabeled digraphs with n arcs and a global source and sink. A350796

G.f. A(x) satisfies: A(x) = 1 + x + x² * A(x/(1 + 3·x)) / (1 + 3·x). A351184

Number of coverings of {1..n} by translation and reflection of a single set. A96203

Number of sets of exactly five positive integers <= n having a square element sum. A281865

Numbers that contain as proper substrings every maximal prime power dividing them. A59401

Form a conjugate partition of row with 1+1+1 in first row. all other rows are the union of their parents. a(n) = number of types of piles in the n-th row. A64480

Interprimes which are of the form s·prime, s=10. A75285

Number of 0..n arrays x(0..10) of 11 elements with zero 6th differences. A200447