Properties of the Number 13912

Thirteen Thousand Nine Hundred Twelve

Basics

Value: 13911 → 13912 → 13913

Parity: even

Prime: No

Previous Prime: 13907

Next Prime: 13913

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 37 × 47

Divisors: 1, 2, 4, 8, 37, 47, 74, 94, 148, 188

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11011001011000

Octal: 33130

Duodecimal: 8074

Hexadecimal: 3658

Square: 193543744

Square Root: 117.94914158229385

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

Expansion of ψ(x²) / f(-x) in powers of·where ψ(), f() are Ramanujan θ functions. A98613

Numbers k such that k¹⁶ == 1 (mod 17³). A56088

T(n,k) is the number of (n+1) X (k+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). A235017

Positions of 3's in A234323. A234804

Smallest number that is the largest value in the Collatz (3x + 1) trajectories of exactly n initial values. (a(n)=0 if no such number exists.) A233293

G.f.: ∑_n>=0 ∏_k=1..n ((1+x)^k - 1)/(1 - x^k). A207652

Sophie Germain 5-almost primes. A211162

G.f. A(x) satisfies A(x) = ∏_k>=1 (1 - x^k*A(x)). A298261

Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, formed in a square with edge length 1 by straight line segments when connecting the internal edge points that divide the sides into segments with lengths equal to the Farey series of order n to the equivalent points on the opposite side of the square. A359656

Coefficients of the sixth-order mock θ function psi_-(q). A153252