Properties of the Number -9045

Forty-Five

Basics

Value: -9046 → -9045 → -9044

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 67

Divisors: 1, 3, 5, 9, 15, 27, 45, 67, 135, 201

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001101010101

Octal: -21525

Duodecimal: -5299

Hexadecimal: -2355

Square: 81812025

Square Root: 95.10520490488415

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

Expansion of e.g.f. 1/(1 - 2·x * cos(2·x))^1/2. A385283

3 times pentagonal numbers: 3·n*(3·n-1)/2. A62741

a(n) = (2·n-1)*(4·n-1). A33567

Number of inequivalent ways to color vertices of a regular tetrahedron using <= n colors. A6008

The first of three consecutive triangular numbers the sum of which is equal to the sum of three consecutive primes. A298168

Positive integers not expressible as the sum of a prime and a triangular number. A76768

T(n,k) = Number of n X k 0..1 arrays with each 1 horizontally or vertically adjacent to 0 or 2 1's. A295051

Numbers that are the sum of five third powers in nine or more ways. A345185

Smallest positive integer which can be represented as the sum of distinct positive cubes in exactly n ways, or 0 if no such integer exists. A275154

Triangular numbers n for which A240542(n) = A240542(n-1). A298856