Properties of the Number -230

Two Hundred Thirty

Basics

Value: -231 → -230 → -229

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 23

Divisors: 1, 2, 5, 10, 23, 46, 115, 230

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11100110

Octal: -346

Duodecimal: -172

Hexadecimal: -e6

Square: 52900

Square Root: 15.165750888103101

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

a(n) = (n+1)*(2-n)/2. A80956

Expansion of (1-x)/(1+x-x²+x³). A78042

Riordan array (1/(1-x²), x/(1+x)²). A158454

a(n) = A000728(5·n). A282937

Expansion of η(q²) * η(q³⁰) / (η(q³) * η(q⁵)) in powers of q. A94022

Expansion of φ(-x)² * f(-x)⁶ + 32·x * ψ(-x)² * f(-x⁴)⁶ in powers of·where φ(), ψ(), f() are Ramanujan θ functions. A215601

Inverse Euler transform of the number of prime factors (with multiplicity) function A001222. A320776

Inverse Euler transform of the unsigned Moebius function A008966. A320782

Triangle of coefficients of Gaussian polynomials [2n+3,2]_q represented as finite sum of terms (1+q²)^k*q^g-k, where k = 0,1,...,g with g=2n+1. A267483

Expansion of f(q)⁵ / f(q⁵) in powers of q where f() is a Ramanujan θ function. A138506