Properties of the Number 13203

Thirteen Thousand Two Hundred Three

Basics

Value: 13202 → 13203 → 13204

Parity: odd

Prime: No

Previous Prime: 13187

Next Prime: 13217

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 163

Divisors: 1, 3, 9, 27, 81, 163, 489, 1467, 4401, 13203

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001110010011

Octal: 31623

Duodecimal: 7783

Hexadecimal: 3393

Square: 174319209

Square Root: 114.90430801323335

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 n such that n divides 2ⁿ + 1. A6521

a(n) = p*(p-1)/2 for p = prime(n). A8837

Numbers m such that m divides 10^m - 1. A14950

Numbers k such that k | 5^k + 1. A15951

Expansion of 1/(1 - x - x⁹ - x¹⁷ + x¹⁸). A175772

a(n) = (2·n-1)*(4·n-1). A33567

a(n) = (n³ - 7·n + 12)/6. A105163

Square array, read by antidiagonals, where row n equals the crystal ball sequence for D_n lattice. A108553

a(1)=3, a(2)=3, a(n)=3·a(n-1) + 3·a(n-2). A189737

Numbers k such that k | 11^k + 1. A15960