Properties of the Number 51445

Fifty-One Thousand Four Hundred Forty-Five

Basics

Value: 51444 → 51445 → 51446

Parity: odd

Prime: No

Previous Prime: 51439

Next Prime: 51449

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 10289

Divisors: 1, 5, 10289, 51445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100011110101

Octal: 144365

Duodecimal: 25931

Hexadecimal: c8f5

Square: 2646588025

Square Root: 226.81490250863146

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

Triangle, read by rows, given by the product R^-1·P³ using triangular matrices P=A113370, R=A113389. A114153

Numbers that are the sum of four fifth powers in two or more ways. A344644

Expansion of ∏_k>=1 (1 + k⁵*x^k). A265842

Triangle, read by rows, equal to the matrix square of triangle A113389. Also given by the matrix product: R² = Q³*(P^-2)*Q, using triangular matrices P=A113370, Q=A113381 and R=A113389. A113392

Numbers that are the sum of four fifth powers in exactly two ways. A344645

a(n) is the smallest number that is the sum of n positive 5th powers in two ways. A343078

Numbers that are the sum of four fifth powers in exactly one way. A344642

Smallest k such that φ(k) = 2n, or 0 if there is no such k. A51445