Properties of the Number 51878

Fifty-One Thousand Eight Hundred Seventy-Eight

Basics

Value: 51877 → 51878 → 51879

Parity: even

Prime: No

Previous Prime: 51871

Next Prime: 51893

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 25939

Divisors: 1, 2, 25939, 51878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101010100110

Octal: 145246

Duodecimal: 26032

Hexadecimal: caa6

Square: 2691326884

Square Root: 227.76742523899242

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

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k ascents of length 2 starting at an even level (0<=k<=floor(n/2)). A114462

Partial sums of A051797. A51878

Rectangular array A read by upward antidiagonals in which the entry in row n and column k is defined by A(n,k) = (2^a(n)*(6·k - (3 - (-1)^a(n))*(1 - (-1)ⁿ)/2) - 2ⁿ + 4)/6, n,k >= 1, where {a(n)} is the Beatty sequence A117630 defined by a(n) = floor(n·log(3)/log(3/2)). A254312