Properties of the Number 80155

Eighty Thousand One Hundred Fifty-Five

Basics

Value: 80154 → 80155 → 80156

Parity: odd

Prime: No

Previous Prime: 80153

Next Prime: 80167

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 17 × 23 × 41

Divisors: 1, 5, 17, 23, 41, 85, 115, 205, 391, 697

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011100100011011

Octal: 234433

Duodecimal: 3A477

Hexadecimal: 1391b

Square: 6424824025

Square Root: 283.11658376011815

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

Numerator of the side lengths (legs in ascending order) of the easiest Pythagorean Triangle (with smallest hypotenuse) according to the congruent numbers A003273. A268602

G.f. satisfies: A(x) = ∑_n>=0 nⁿ * xⁿ / (A(x) + n·x)ⁿ. A211207

a(1)=2; a(n) for n>1 is the smallest prime number > a(n-1) such that the concatenation of all previous terms is also prime. A80155