Properties of the Number 52515

Fifty-Two Thousand Five Hundred Fifteen

Basics

Value: 52514 → 52515 → 52516

Parity: odd

Prime: No

Previous Prime: 52511

Next Prime: 52517

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 389

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 389, 1167

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100110100100011

Octal: 146443

Duodecimal: 26483

Hexadecimal: cd23

Square: 2757825225

Square Root: 229.16151509361254

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

Numbers k such that k and k² use only the digits 1, 2, 5, 7 and 8. A137008

Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001. A259955

Number of ordered pairs of complementary subsets of an n-set with both subsets of cardinality at least 2. A52515

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001. A259962