Properties of the Number 13921

Thirteen Thousand Nine Hundred Twenty-One

Basics

Value: 13920 → 13921 → 13922

Parity: odd

Prime: Yes

Previous Prime: 13913

Next Prime: 13931

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13921

Divisors: 1, 13921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011001100001

Octal: 33141

Duodecimal: 8081

Hexadecimal: 3661

Square: 193794241

Square Root: 117.98728745080972

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 integer partitions of 2·n having exactly 2·n submultisets. A325830

Centered 32-gonal numbers. A195315

Primes which are the sum of a twin prime pair + 1. A118071

Floor(n·exp(cot n)). A134897

Primes of form k² - 3. A28874

Primes p such that p·q-p-q and p·q+p+q are prime where q=nextprime(p). A128548

Five-digit mountain-type primes that increase to and decrease from the central digit, including palindromes. A156116

Fifth term of weak prime sextet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m). A54832

Expansion of e.g.f. arcsinh(cos(x)*sech(x)), even powers only. A213069

Prime numbers congruent to 1 or 169 modulo 240 representable neither by x² + 150·y² nor by x² + 960·y². A325088