Properties of the Number 52855

Fifty-Two Thousand Eight Hundred Fifty-Five

Basics

Value: 52854 → 52855 → 52856

Parity: odd

Prime: No

Previous Prime: 52837

Next Prime: 52859

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 11 × 31 ²

Divisors: 1, 5, 11, 31, 55, 155, 341, 961, 1705, 4805

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100111001110111

Octal: 147167

Duodecimal: 26707

Hexadecimal: ce77

Square: 2793651025

Square Root: 229.90215309996555

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 all possible tetrahedra of any size and orientation, formed when intersecting the original regular tetrahedron by planes parallel to its sides and dividing its edges into n equal parts. A216173

Numbers k such that k, k+1, k+2 and k+3 are products of 4 primes. A124728

a(n) is the number in the first column of the Trithoff (tribonacci) array that starts off the row containing the tail of n times the tribonacci sequence. A351689

a(n) = (2·n - 7)*n². A15242

Numbers k that divide 7^k + 3^k. A45586

Numbers k such that core(k) = b(k,1)*b(k,0) where b(k,1) is the number of 1's in binary representation of k, b(k,0) the number of 0's and core(k) the squarefree part of k. A71639

Number of forests of rooted trees of nonempty sets with n points. (Each node is a set of 1 or more points.) A52855

G.f.: A(x) = INV(x-x² - x²*INV(x-2·x² - x²*INV(x-3·x² - x²*INV(x-4·x² - x²*INV(x-5·x² - ...))))), where INV(F(x)) = series reversion of F(x). A196710