Properties of the Number 13908

Thirteen Thousand Nine Hundred Eight

Basics

Value: 13907 → 13908 → 13909

Parity: even

Prime: No

Previous Prime: 13907

Next Prime: 13913

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 19 × 61

Divisors: 1, 2, 3, 4, 6, 12, 19, 38, 57, 61

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11011001010100

Octal: 33124

Duodecimal: 8070

Hexadecimal: 3654

Square: 193432464

Square Root: 117.93218390244455

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 partitions of n where the difference between consecutive parts is at most 3. A238863

Number of ways to place 2 non-attacking ferses on an n X n board. A201243

Numbers k such that k*(k+1)-1 and k*(k+1)+1 are twin primes and k*(k+3)-1 and k*(k+3)+1 are also twin primes. A138303

Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y<3z. A212512

Number of nondecreasing strings of numbers x(i=1..7) in -n..n with sum x(i)³ equal to 0. A188281

a(1) = 2; for n>1, a(n) = largest integer such that the sequence b(n) = a(n)^1/n is decreasing. A207976

Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302518

Triangle lc(n,k): the number of purely line-connected k-partitions of [n], n>=4, 3<=k<n. A305874

a(n)= 5*(n-1)*a(n-1) -(n-1)*a(n-2), with a(0)=0, a(1)=1. A108207

Second differences of the overpartitions. A361298