Properties of the Number 51209

Fifty-One Thousand Two Hundred Nine

Basics

Value: 51208 → 51209 → 51210

Parity: odd

Prime: No

Previous Prime: 51203

Next Prime: 51217

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 41 × 1249

Divisors: 1, 41, 1249, 51209

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100000001001

Octal: 144011

Duodecimal: 25775

Hexadecimal: c809

Square: 2622361681

Square Root: 226.29405648403582

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-1, n and n+1 can be expressed as a sum of 2 squares in at least 2 ways. A91459

Number of first quadrant lattice squares inside the circle x²+y²=(2ⁿ)². A156790

Nonnegative numbers of the form x²-7^y. A51209