Properties of the Number -118405

One Hundred Eighteen Thousand Four Hundred Five

Basics

Value: -118406 → -118405 → -118404

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 7 × 17 × 199

Divisors: 1, 5, 7, 17, 35, 85, 119, 199, 595, 995

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100111010000101

Octal: -347205

Duodecimal: -58631

Hexadecimal: -1ce85

Square: 14019744025

Square Root: 344.1002760824234

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

4-dimensional analog of centered polygonal numbers: a(n) = n(n+1)*(n²+n+4)/12. A6007

Terms of A324315 (squarefree integers m > 1 such that if prime p divides m, then the sum of the base p digits of m is at least p) that are also octagonal numbers (A000567) with index equal to their largest prime factor. A324320

Numbers that have exactly 7 representations as a k-gonal number, P(m,k) = m*((k-2)*m - (k-4))/2, k and m >= 3. A321157

a(n) = n*(n+1)*(6·n-5)/2. A172082

Odd composite numbers k for which k = A140607((k-1)/2). A140667

Strong pseudoprimes to base 86. A20312

Numbers k such that σ(σ(k)-k) = φ(k). A74875