Properties of the Number 12903

Twelve Thousand Nine Hundred Three

Basics

Value: 12902 → 12903 → 12904

Parity: odd

Prime: No

Previous Prime: 12899

Next Prime: 12907

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 17 × 23

Divisors: 1, 3, 11, 17, 23, 33, 51, 69, 187, 253

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001001100111

Octal: 31147

Duodecimal: 7573

Hexadecimal: 3267

Square: 166487409

Square Root: 113.59137291185453

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) is the solution to the postage stamp problem with 5 denominations and n stamps. A1210

Numbers whose sum of divisors is a fourth power. A19422

Number of integer partitions of n whose parts are all equal or whose distinct parts are pairwise coprime. A304712

Numbers k such that k and 7·k are anagrams. A23091

Numbers n such that sopf(φ(n)) = φ(sopf(n)), where sopf(x) = sum of the distinct prime factors of x. A76531

Number of nonnegative solutions to (x₁)² + (x₂)² + ... + (x₇)² <= n. A341402

a(n) = ∑_{x₁∣n, x₂∣n, x₃∣n, x₄∣n, x₅∣n} gcd(x₁,x₂,x₃,x₄,x₅). A344139

a(n) = n*(n+1)*(n²+5·n+18)/24. A51744

a(n) = smallest k having at least three prime divisors d such that (d + n) | (k + n). A202158

Products p·q*r·s of distinct primes for which (p·q*r·s - 1)/2 is prime. A234498