Properties of the Number 51487

Fifty-One Thousand Four Hundred Eighty-Seven

Basics

Value: 51486 → 51487 → 51488

Parity: odd

Prime: Yes

Previous Prime: 51481

Next Prime: 51503

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 51487

Divisors: 1, 51487

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100100011111

Octal: 144437

Duodecimal: 25967

Hexadecimal: c91f

Square: 2650911169

Square Root: 226.9074701282441

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

Primes of the form 2n²+18n+7, n>=0. A154592

Primes of the form 3n² + 4. A201477

Prime numbers that are the sum of the first k lucky numbers, A046279(k), for some k. A46281

a(n) = a(n-1) + p(n) if p(n) > a(n-1), otherwise a(n) = a(n-1) - p(n), where p is the partition function A000041 (assuming a(n) = 0 for n < 0). A331165

Number of n X 5 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X 5 array. A220029

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 537", based on the 5-celled von Neumann neighborhood. A272792

Numbers k such that φ(k) = φ(k - φ(k)). A51487