Properties of the Number 15327

Fifteen Thousand Three Hundred Twenty-Seven

Basics

Value: 15326 → 15327 → 15328

Parity: odd

Prime: No

Previous Prime: 15319

Next Prime: 15329

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 131

Divisors: 1, 3, 9, 13, 39, 117, 131, 393, 1179, 1703

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11101111011111

Octal: 35737

Duodecimal: 8A53

Hexadecimal: 3bdf

Square: 234916929

Square Root: 123.80226169178009

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)*(5·n+1)/6. A33994

T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2 X 2 permanents nonzero. A204740

T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..2 nXk array. A218233

a(n) = number of m such that A080737(m) <= 2n. A80740

a(n)=floor(3·n²*(2+sqrt(3))). A172526

Partial sums of A033485. A178855

a(n) = A277715(n) / 3. A277716

T(2n-1,n-2), T given by A026907. A26913

Numbers k that divide 7^k + 2^k. A45580

Minimal peaks in digital expansions of π: positions of peaks equal to 1. A105275