Properties of the Number 39860

Thirty-Nine Thousand Eight Hundred Sixty

Basics

Value: 39859 → 39860 → 39861

Parity: even

Prime: No

Previous Prime: 39857

Next Prime: 39863

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 1993

Divisors: 1, 2, 4, 5, 10, 20, 1993, 3986, 7972, 9965

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101110110100

Octal: 115664

Duodecimal: 1B098

Hexadecimal: 9bb4

Square: 1588819600

Square Root: 199.64969321288726

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

Least number m such that A247600(m) = n. A281197

Numbers k such that abs(prime(k)-k*τ(k)) < sqrt(k). A68543

Interprimes which are of the form s·prime, s=20. A75295

Number of 5-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions. A187510

a(n) = one-half of the number of cells in the central rectangle of the graph described in row 2n+1 of A333288. A337640

Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5. A375981

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ATN = MAPO-39 Hn [ MgnAl8-n P8O32 ]. A18983

Number of 3-connected planar cubic graphs with 2·n nodes and exactly one edge-Kempe equivalence class. A358287

Number of partitions satisfying cn(1,5) + cn(4,5) <= cn(0,5). A39860