Properties of the Number 51731

Fifty-One Thousand Seven Hundred Thirty-One

Basics

Value: 51730 → 51731 → 51732

Parity: odd

Prime: No

Previous Prime: 51721

Next Prime: 51749

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 17 ² × 179

Divisors: 1, 17, 179, 289, 3043, 51731

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101000010011

Octal: 145023

Duodecimal: 25B2B

Hexadecimal: ca13

Square: 2676096361

Square Root: 227.44449872441407

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) = 81·n² - 118·n + 43. A156677

Expansion of ∏_k>=0 1/(1-x^5·k+4)^5·k+4. A285132

Square root of n has the same nonzero digit in each of the first 4 places to the right of the decimal point. A73585

Numbers with sum of digits equaling 17, divisible by 17, and containing the string "17". A346904

Reverse (palindrome) of A164844. A168647

Triangle read by rows: T(n, k) = 1 if k divides n, T(n, k) = 0 otherwise, for 1 <= k <= n. A51731