Properties of the Number -238

Two Hundred Thirty-Eight

Basics

Value: -239 → -238 → -237

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 17

Divisors: 1, 2, 7, 14, 17, 34, 119, 238

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: -11101110

Octal: -356

Duodecimal: -17A

Hexadecimal: -ee

Square: 56644

Square Root: 15.427248620541512

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

Numerator of Hermite(n, 1/11). A159280

a(n) = -2·n² + 12·n - 14. A147973

Image of primes (A000040) under "little Hankel" transform that sends [c₀, c₁, ...] to [d₀, d₁, ...] where d_n = c_n² - c_n+1*c_n-1. A56221

Irregular triangle read by rows: row n is the expansion of (1 + 2·x - x²)ⁿ. A123199

G.f.: Re((i; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1). A278399

Partial alternating sums of the Dedekind ψ function (A001615): a(n) = ∑_k=1..n (-1)^k+1 * ψ(k). A357817

a(n) = ∑_k=1..n μ(k)*k². A336276

Glaisher's chi₄(n). A30212

McKay-Thompson series of class 10E for the Monster group with a(0) = 1. A132980

McKay-Thompson series of class 10E for the Monster group with a(0) = 2. A138516