Properties of the Number 52781

Fifty-Two Thousand Seven Hundred Eighty-One

Basics

Value: 52780 → 52781 → 52782

Parity: odd

Prime: No

Previous Prime: 52769

Next Prime: 52783

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 47 × 1123

Divisors: 1, 47, 1123, 52781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100111000101101

Octal: 147055

Duodecimal: 26665

Hexadecimal: ce2d

Square: 2785833961

Square Root: 229.74115869821847

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

Sixth-order spt function. A221144

The first position of the first cycle of sequence {b_k}={b_k}(n) in A237671. A238019

Composite numbers m such that m divides ∑_k=1..m-1 (lcm(1,2,...,(m-1)) / k)². A309556

G.f. A(x) satisfies: A(x) = exp( ∑_k>=1 A(x^k)⁵ * x^k / k ). A52781