Properties of the Number 13973

Thirteen Thousand Nine Hundred Seventy-Three

Basics

Value: 13972 → 13973 → 13974

Parity: odd

Prime: No

Previous Prime: 13967

Next Prime: 13997

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 89 × 157

Divisors: 1, 89, 157, 13973

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11011010010101

Octal: 33225

Duodecimal: 8105

Hexadecimal: 3695

Square: 195244729

Square Root: 118.20744477400736

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

a(n) = (9·n² - 5·n + 2)/2. A140064

Odd numbers m that are neither of the form p + 2^k nor of the form p - 2^k with 2^k < m, k >= 1, and p prime. A255967

Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UU and HH. A329666

a(n) = a(n-1) + a(n-3) + a(n-4), n >= 4, with initial terms -1,3,2,1. A111572

Total number of regions between the free polyominoes with n cells and their bounding boxes. A380285

Number of digits in n-th even perfect number (A000396). A61193

G.f. A(x) satisfies: A(x) = ( A(-x) + sqrt( A(-x)² + 64·x/A(-x) ) )/2. A353325

Expansion of e.g.f. exp(tan(exp(x)-1)). A80831

a(n) = 14 + floor((1 + ∑_j=1..n-1 a(j))/3). A120158

Transform of A056594 by the T_0,1 transformation (see link). A159343