Properties of the Number 88230

Eighty-Eight Thousand Two Hundred Thirty

Basics

Value: 88229 → 88230 → 88231

Parity: even

Prime: No

Previous Prime: 88223

Next Prime: 88237

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 17 × 173

Divisors: 1, 2, 3, 5, 6, 10, 15, 17, 30, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101100010100110

Octal: 254246

Duodecimal: 43086

Hexadecimal: 158a6

Square: 7784532900

Square Root: 297.0353514314416

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 edges inside a pentagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A329710

G.f. A(x) satisfies: A(x) = x*(1 + 4·A(x)*A'(x)) / (1 + A(x)*A'(x)). A301933

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of the n*(k+1) boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of edges in the resulting planar graph. A367324

Expansion of exp(∑_k>=1 (-1)^k+1*x^k/(k·sqrt(1 - 4·x^k))). A305256

a(1)=0; for n>1: a(n)=a(n-1)-n if that number is nonnegative and occurs at most once in the sequence, otherwise a(n)=a(n-1)+n. A88230