Properties of the Number 91205

Ninety-One Thousand Two Hundred Five

Basics

Value: 91204 → 91205 → 91206

Parity: odd

Prime: No

Previous Prime: 91199

Next Prime: 91229

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 17 × 29 × 37

Divisors: 1, 5, 17, 29, 37, 85, 145, 185, 493, 629

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010001000101

Octal: 262105

Duodecimal: 44945

Hexadecimal: 16445

Square: 8318352025

Square Root: 302.00165562460086

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

Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k² can be written as a sum of two squares in 40 ways. A97282

Numbers that are the sum of 2 nonzero squares in 7 or more ways. A25298

Numbers that are the sum of 2 nonzero squares in 8 or more ways. A25299

Numbers that are the sum of 2 distinct nonzero squares in 7 or more ways. A25317

Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways. A25318

Integer a(n) produces the least positive integer coefficient of xⁿ in the n-th iteration of g.f. A(x) where A(0)=0. A119815

Numbers that are the sum of 2 nonzero squares in exactly 8 ways. A25291

a(n) = 81·n² - 72·n + 17. A154277

Numbers n that are the product of four distinct odd primes and x² + y² = n has integer solutions. A264499

a(n) = 6561·n² - 3564·n + 485. A156774