Properties of the Number 39874

Thirty-Nine Thousand Eight Hundred Seventy-Four

Basics

Value: 39873 → 39874 → 39875

Parity: even

Prime: No

Previous Prime: 39869

Next Prime: 39877

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 19937

Divisors: 1, 2, 19937, 39874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101111000010

Octal: 115702

Duodecimal: 1B0AA

Hexadecimal: 9bc2

Square: 1589935876

Square Root: 199.68475154603067

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

a(n) is the number of divisors of n-th even perfect number. A61645

a(1) = 2. a(n) is smallest integer > a(n-1) which is a multiple of the largest prime <= a(n-1). A113118

a(1) = 2; for n>1, a(n) is the smallest integer > a(n-1) such that all primes <= a(n-1) divide at least one integer k for a(n-1) < k <= a(n). A113117

Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array. A219514

Numbers k such that (11·10^k - 179) / 3 is prime. A278442

Partition the natural numbers by letting a(1)=1 (denoting the set {1}) and for n>1 define a(n) to be the least integer such that the product of the set of integers {a(n-1)+1,...,a(n)} is an integer multiple of the previous partition's product. A381901

a(n) = ∑_k=0..n binomial(4·n-3,k). A387035

Number of partitions satisfying cn(1,5) <= cn(0,5) + cn(2,5) and cn(1,5) <= cn(0,5) + cn(3,5) and cn(4,5) <= cn(0,5) + cn(2,5) and cn(4,5) <= cn(0,5) + cn(3,5). A39874