Properties of the Number 51686

Fifty-One Thousand Six Hundred Eighty-Six

Basics

Value: 51685 → 51686 → 51687

Parity: even

Prime: No

Previous Prime: 51683

Next Prime: 51691

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 43 × 601

Divisors: 1, 2, 43, 86, 601, 1202, 25843, 51686

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100111100110

Octal: 144746

Duodecimal: 25AB2

Hexadecimal: c9e6

Square: 2671442596

Square Root: 227.34555196880365

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

Alkane systems (see Cyvin reference for precise definition). A121183

Numbers n such that the n-th digit (after the decimal point) in the decimal expansion of π are the occurrence of the least significant digit represented by the more significant digits. A201545

Number of nXnXn 0..6 triangular arrays with each element·equal to the number its neighbors equal to 6,0,1,1,1,1,1 for x=0,1,2,3,4,5,6. A198156

Smallest prime p such that 2n·p+1 is also prime. A51686