Properties of the Number 80241

Eighty Thousand Two Hundred Forty-One

Basics

Value: 80240 → 80241 → 80242

Parity: odd

Prime: No

Previous Prime: 80239

Next Prime: 80251

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 3821

Divisors: 1, 3, 7, 21, 3821, 11463, 26747, 80241

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10011100101110001

Octal: 234561

Duodecimal: 3A529

Hexadecimal: 13971

Square: 6438618081

Square Root: 283.26842393743783

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 reduced words of length n in the Weyl group B₈. A161717

Triangle, read by rows, of coefficients of q^nk in the q-analog of the even double factorials: T(n,k) = [q^nk] ∏_j=1..n (1-q^2j)/(1-q) for n>0, with T(0,0)=1. A128596

Column 2 of triangle A128596; a(n) = coefficient of q²ⁿ⁺⁴ in the q-analog of the even double factorials (2n+4)!! for n>=0. A128597

Numbers n such that prime(n) contains a substring of all the prime digits in order, i.e., "2357". A295708

Define two sequences by A_n = mex{A_i,B_i : 0 <= i < n} for n >= 0, B₀=0, B₁=1 and for n >= 2, B_n = 2B_n-1+(-1)^A_n. Sequence gives B_n. A80241