Properties of the Number 13989

Thirteen Thousand Nine Hundred Eighty-Nine

Basics

Value: 13988 → 13989 → 13990

Parity: odd

Prime: No

Previous Prime: 13967

Next Prime: 13997

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 4663

Divisors: 1, 3, 4663, 13989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011010100101

Octal: 33245

Duodecimal: 8119

Hexadecimal: 36a5

Square: 195692121

Square Root: 118.27510304370908

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

Integers k such that 10^k+49 is prime. A108054

a(n) = number of components of the graph P(n,2) (defined in Comments). A145667

Number of partitions of at most n into at most 5 parts. A2622

Sum of the fourth largest parts of the partitions of n into 10 parts. A326595

Strings of 5 digits from 1...9, such that no formula using the single digits in the given order exists that evaluates to 0. A288355

Shorthand for A157033, the smallest prime with 2ⁿ digits. A157034

Index where prime(n) appears as a term in A379442. A379558

Column 3 of triangle A128545; a(n) is the coefficient of q³ⁿ⁺⁹ in the central q-binomial coefficient [2n+6,n+3]. A128553

a(1) = a(2) = 1, a(n) = a(n-1) + A007947(a(n-2)) for n >= 3, i.e., a(n) = a(n-1) plus the largest squarefree divisor of a(n-2). A121367

Low temperature antiferromagnetic susceptibility for square lattice. A7215