Properties of the Number -105

One Hundred Five

Basics

Value: -106 → -105 → -104

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7

Divisors: 1, 3, 5, 7, 15, 21, 35, 105

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101001

Octal: -151

Duodecimal: -89

Hexadecimal: -69

Square: 11025

Square Root: 10.246950765959598

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

Triangle read by rows: terms T(n,k) of a binomial decomposition of n*(-1)ⁿ as Sum(k=0..n)T(n,k). A244141

Irregular triangle read by rows: coefficients C(j,k) of a partition transform for direct Lagrange inversion. A134685

Expansion of ψ(x) / φ(x) in powers of·where φ(), ψ() are Ramanujan θ functions. A83365

Lower triangular array T(n,k) generator for group of arrays related to A001147 and A102625. A132382

n minus the Heinz number of the conjugate of the integer partition with Heinz number n. A352491

Series expansion of the Ramanujan-Goellnitz-Gordon continued fraction. A92869

∏_k>=11/(1 - x^k)^a(k) = 1 + 2x. A38063

Coefficients of unitary Hermite polynomials He_n(x). A66325

Coefficient table of numerator polynomials of o.g.f.s for partial sums of powers of positive integers. A196837

a(n) = -a(n-1) - a(n-2) + a(n-3), a(0)=3, a(1)=-1, a(2)=-1. A73145