Properties of the Number 72190

Seventy-Two Thousand One Hundred Ninety

Basics

Value: 72189 → 72190 → 72191

Parity: even

Prime: No

Previous Prime: 72173

Next Prime: 72211

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 7219

Divisors: 1, 2, 5, 10, 7219, 14438, 36095, 72190

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111111110

Octal: 214776

Duodecimal: 3593A

Hexadecimal: 119fe

Square: 5211396100

Square Root: 268.68196813333043

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

Palindromic numbers in bases 3 and 9 written in base 10. A259386

G.f. A(x) satisfies: A(x) = 1/((1-x·B(x)²)*(1-x·C(x)³)) such that B(x) = 1/((1-x·A(x))*(1-x·C(x)³)) and C(x) = 1/((1-x·A(x))*(1-x·B(x)²)) are the g.f.s of A341955 and A341956, respectively. A341954

Indices of primes with primitive root 2. A72190

G.f. B(x) satisfies: B(x) = 1/((1-x·A(x))*(1-x·C(x)³)) such that A(x) = 1/((1-x·B(x)²)*(1-x·C(x)³)) and C(x) = 1/((1-x·A(x))*(1-x·B(x)²)) are the g.f.s of A341954 and A341956, respectively. A341955

G.f. C(x) satisfies: C(x) = 1/((1-x·A(x))*(1-x·B(x)²)) such that A(x) = 1/((1-x·B(x)²)*(1-x·C(x)³)) and B(x) = 1/((1-x·A(x))*(1-x·C(x)³)) are the g.f.s of A341954 and A341955, respectively. A341956