Properties of the Number 13909

Thirteen Thousand Nine Hundred Nine

Basics

Value: 13908 → 13909 → 13910

Parity: odd

Prime: No

Previous Prime: 13907

Next Prime: 13913

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 1987

Divisors: 1, 7, 1987, 13909

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011001010101

Octal: 33125

Duodecimal: 8071

Hexadecimal: 3655

Square: 193460281

Square Root: 117.93642355099632

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 permutations p of [n] such that (n-p(i)+i) mod n >= 6 for all i. A184965

Maximal coefficient of (1 + x) * (1 + x⁸) * (1 + x²⁷) * ... * (1 + x^n³). A359319

Permanent of a certain cyclic n X n (0,1) matrix. A804

Class numbers associated with terms of A001986. A1987

Class numbers associated with entries of A094841. A94842

Records in A001987. A94846

Class numbers associated with the entries of A094843. A94844

Number of partitions of n such that the (sum of distinct even parts) = floor(n/2). A284610

Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254906

Numbers n such that the sum of the distinct prime factors of prime(n)-1 and prime(n+1)-1 are the same. A259562