Properties of the Number 39856

Thirty-Nine Thousand Eight Hundred Fifty-Six

Basics

Value: 39855 → 39856 → 39857

Parity: even

Prime: No

Previous Prime: 39847

Next Prime: 39857

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 47 × 53

Divisors: 1, 2, 4, 8, 16, 47, 53, 94, 106, 188

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101110110000

Octal: 115660

Duodecimal: 1B094

Hexadecimal: 9bb0

Square: 1588500736

Square Root: 199.63967541548448

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

G.f.: ( 1 - x² - sqrt( 1 - 2·x² - 4·x³ - 3·x⁴ ) ) / ( 2·x³ ). A50253

Number of permutations of {1,...,n} avoiding adjacent step pattern up, down, down, down, down, up. A177535

Numerator of Hermite(n, 4/29). A160231

Number of unlabeled 2,3 cacti (triangular cacti with bridges) rooted at a triangle with n triangles and every node contained in exactly one triangle. A381469

Number of length n+3 0..5 arrays with some disjoint pairs in every consecutive four terms having the same sum. A247530

Number of partitions satisfying cn(1,5) + cn(4,5) <= 1. A39856