Properties of the Number -102080

One Hundred Two Thousand Eighty

Basics

Value: -102081 → -102080 → -102079

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ⁶ × 5 × 11 × 29

Divisors: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11000111011000000

Octal: -307300

Duodecimal: -4B0A8

Hexadecimal: -18ec0

Square: 10420326400

Square Root: 319.49960876345375

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

E.g.f.: ∏_k>=1 1/(1 - tan(x^k)). A270665

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,1,2,0,3 for x=0,1,2,3,4. A196967

a(n) = (9·n+4)*(9·n+5). A177073

Number of nX3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,2,0,3 for x=0,1,2,3,4. A196962

Number of nX7 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,1,2,0,3 for x=0,1,2,3,4. A196966