Properties of the Number 13891

Thirteen Thousand Eight Hundred Ninety-One

Basics

Value: 13890 → 13891 → 13892

Parity: odd

Prime: No

Previous Prime: 13883

Next Prime: 13901

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 29 × 479

Divisors: 1, 29, 479, 13891

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11011001000011

Octal: 33103

Duodecimal: 8057

Hexadecimal: 3643

Square: 192959881

Square Root: 117.86008654332475

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

Numbers that are the sum of 6 nonzero 8th powers. A3384

Composite numbers whose divisors (except 1) all contain the digit 9. A62680

Numbers that are the sum of seven fourth powers in five or more ways. A345571

Numbers that are the sum of seven fourth powers in exactly five ways. A345827

Numbers k such that σ(k) divides σ(φ(k)). A66831

Numbers n such that σ(φ(n))/σ(n) = 2. A67382

Number of non-isomorphic multiset partitions of weight n whose incidence matrix has all distinct entries. A321662

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 585", based on the 5-celled von Neumann neighborhood. A283138

a(n) = 1 + 2·least i such that A103509(i)=n+1, 0 if no such i exists. A103510

Numbers whose sum of divisors is equal to the product of the number of divisors of their k first powers, for some k. A283758