Properties of the Number -90111

Ninety Thousand One Hundred Eleven

Basics

Value: -90112 → -90111 → -90110

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 613

Divisors: 1, 3, 7, 21, 49, 147, 613, 1839, 4291, 12873

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101111111111111

Octal: -257777

Duodecimal: -44193

Hexadecimal: -15fff

Square: 8119992321

Square Root: 300.1849429934819

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

a(n) = 11·2ⁿ - 1. A86225

Number of connected simple graphs with n vertices, n+4 edges, and vertex degrees no more than 4. A112424

T(n,k)=Rolling icosahedron face footprints: number of nXk 0..19 arrays starting with 0 where 0..19 label faces of an icosahedron and every array movement to a horizontal or vertical neighbor moves across an icosahedral edge. A223209

Bases in which 11 is a unique-period prime. A306076

Numbers k such that the odd part of (1+k) divides (1 + odd part of A048250(k)), where A048250 is sum of the squarefree divisors of n. A387410

Numbers k such that the odd part of (1+k) divides (1 + odd part of A003959(k)), where A003959 is multiplicative with a(p^e) = (p+1)^e. A387419

Rolling icosahedron face footprints: number of n X 4 0..19 arrays starting with 0 where 0..19 label faces of an icosahedron and every array movement to a horizontal or vertical neighbor moves across an icosahedral edge. A223205

Number of length-n 0..2 arrays with no following elements greater than or equal to the first repeated value. A267226

Decimal representation of the middle column of the "Rule 233" elementary cellular automaton starting with a single ON (black) cell. A267880

Figurate numbers based on the small stellated dodecahedron: a(n) = n*(21·n² - 33·n + 14)/2. A318159