Properties of the Number 55916

Fifty-Five Thousand Nine Hundred Sixteen

Basics

Value: 55915 → 55916 → 55917

Parity: even

Prime: No

Previous Prime: 55903

Next Prime: 55921

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 7 × 1997

Divisors: 1, 2, 4, 7, 14, 28, 1997, 3994, 7988, 13979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101001101100

Octal: 155154

Duodecimal: 28438

Hexadecimal: da6c

Square: 3126599056

Square Root: 236.46564232463032

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

The number of vertices formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642. A330913

Irregular triangle read by rows: T(n,k) (n>=2, 1<=k<=n) gives number of arrangements of the elements from the multiset M(n, 3) into exactly k disjoint cycles. A245183

G.f. = b(2)*b(4)*b(6)/(x⁸+x⁶-x⁵+x⁴-2·x³-x+1), where b(k) = (1-x^k)/(1-x). A266340

Array read by antidiagonals: T(n,k) (n>=1, k>=1) = number of ways to select four points from an n X k grid so that three of them form a triangle of nonzero area and the extra point is on one of the edges of the triangle. A334710

Coefficients of a polynomial used in calculation of A055913. A55916