Properties of the Number 51387

Fifty-One Thousand Three Hundred Eighty-Seven

Basics

Value: 51386 → 51387 → 51388

Parity: odd

Prime: No

Previous Prime: 51383

Next Prime: 51407

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 2447

Divisors: 1, 3, 7, 21, 2447, 7341, 17129, 51387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100010111011

Octal: 144273

Duodecimal: 258A3

Hexadecimal: c8bb

Square: 2640623769

Square Root: 226.687008891114

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 m such that 3·2^m - 1 is prime. A2235

Expansion of 1/(1-x²(1-3x)). A106855

n times π(n) is a palindrome, where π(n) = PrimePi(n) = A000720(n). A116054

Numbers whose 4th power is the sum of two positive cubes in a nontrivial way. A51387