Properties of the Number -99144

Ninety-Nine Thousand One Hundred Forty-Four

Basics

Value: -99145 → -99144 → -99143

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ⁶ × 17

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 17, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -11000001101001000

Octal: -301510

Duodecimal: -49460

Hexadecimal: -18348

Square: 9829532736

Square Root: 314.8714023216462

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

Triangular sequence produced from symmetrical power of two matrices of the general type: M={{1, 2, 4, 8}, {2, 1, 2, 4}, {4, 2, 1, 2}, {8, 4, 2, 1}}. A129964

Expansion of e.g.f.: sec(exp(x)-sec(x))=1+1/2!*x²+9/4!*x⁴-20/5!*x⁵+177/6!*x⁶... A13338

Number of compositions of n with all adjacent parts (x, y) satisfying x >= 2y or y = 2x. A342335

a(n) = n⁴ - n³. A85537

Binomial transform of n²*2ⁿ/2. A77616

Number of 3-element ordered antichain covers of an unlabeled n-element set. A56074

Number of rooted planar bi-Eulerian maps with 2n edges. Bi-Eulerian: all its vertices and faces are of even valency. A69726

Numbers with prime factorization pq^3r^6. A190467

G.f. A(x) satisfies: [x^k] (1+x)^n*(n+1/2) * A(x) = 0 for k = n*(n-1)/2 + 1 through k = n*(n+1)/2 for n >= 1. A305601

a(n) = n*(n + 1)³. A85540