Properties of the Number 13871

Thirteen Thousand Eight Hundred Seventy-One

Basics

Value: 13870 → 13871 → 13872

Parity: odd

Prime: No

Previous Prime: 13859

Next Prime: 13873

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 × 13 × 97

Divisors: 1, 11, 13, 97, 143, 1067, 1261, 13871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011000101111

Octal: 33057

Duodecimal: 803B

Hexadecimal: 362f

Square: 192404641

Square Root: 117.77520961560629

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

Partial sums of A299287. A299288

Number of integer compositions of n that are the first sums of some composition. A391683

a(n) = (1/n!)*A001565(n). A94792

a(n) = 12·n² - 1. A158463

Start of a record-breaking run of consecutive integers with an odd number of prime factors. A66794

Expansion of 1/((1-x²)*sqrt(1-4·x)). A106188

Chebyshev pseudoprimes to base 2: composite numbers k such that T(k, 2) == 2 (mod k), where T(k, x) is the k-th Chebyshev polynomial of the first kind. A330206

Odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 4 (mod m), where U(m)=A001353(m) and V(m)=A003500(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=4 and b=1, respectively. A337778

a(n) is the position of cube of the n-th prime among the powers of primes (A000961). A24625

a(n) = 48·n² - 1. A65532