Properties of the Number 51225

Fifty-One Thousand Two Hundred Twenty-Five

Basics

Value: 51224 → 51225 → 51226

Parity: odd

Prime: No

Previous Prime: 51217

Next Prime: 51229

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 ² × 683

Divisors: 1, 3, 5, 15, 25, 75, 683, 2049, 3415, 10245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100100000011001

Octal: 144031

Duodecimal: 25789

Hexadecimal: c819

Square: 2624000625

Square Root: 226.3294059551255

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

Total number of parts coprime to n in the partitions of n into 7 parts. A363325

Expansion of 1/sqrt(1 -2·x -3·x² -4·x³ +4·x⁴). A108488

Number of 8-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions. A187513

Multiplicity of highest weight (or singular) vectors associated with character chi₁₀₉ of Monster module. A34497

Numbers m such that the Bernoulli number B_2·m has denominator 30. A51225

T(n,k)=Number of n-step S, E, and NW-moving king's tours on a kXk board summed over all starting positions. A187507