Properties of the Number 81878

Eighty-One Thousand Eight Hundred Seventy-Eight

Basics

Value: 81877 → 81878 → 81879

Parity: even

Prime: No

Previous Prime: 81869

Next Prime: 81883

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 40939

Divisors: 1, 2, 40939, 81878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111111010110

Octal: 237726

Duodecimal: 3B472

Hexadecimal: 13fd6

Square: 6704006884

Square Root: 286.1433207328104

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

Number of planar partitions of n where parts strictly decrease along each row and column. A114736

Triangle read by rows in which row n begins with n and iterates the process of dividing n by 2 if n is even, adding 3 if n is an odd prime, otherwise adding 1; stopping when either 1 or 3 is reached. A81878