Properties of the Number 90191

Ninety Thousand One Hundred Ninety-One

Basics

Value: 90190 → 90191 → 90192

Parity: odd

Prime: Yes

Previous Prime: 90187

Next Prime: 90197

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 90191

Divisors: 1, 90191

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000001001111

Octal: 260117

Duodecimal: 4423B

Hexadecimal: 1604f

Square: 8134416481

Square Root: 300.31816461879225

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

Primes having only {0, 1, 9} as digits. A199329

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d = 2, 4 or 6) and forming d-pattern=[6,2,4]; short d-string notation of pattern = [624]. A78853

McKay-Thompson series of class 14A for the Monster group with a(0) = 1. A134782

McKay-Thompson series of class 14A for Monster. A58497

Numbers n with property that n² starts and ends with 81. A159775

Integers equal to the sum of divisors of their anti-divisors. A375471

Asymmetric primes: an odd prime p is asymmetric if there is no odd prime q such that |p-q|=gcd(p-1,q-1). A90191

Number of inequivalent strong starters in cyclic group of order 2n+1. A6205