Properties of the Number -7178

One Hundred Seventy-Eight

Basics

Value: -7179 → -7178 → -7177

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 37 × 97

Divisors: 1, 2, 37, 74, 97, 194, 3589, 7178

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110000001010

Octal: -16012

Duodecimal: -41A2

Hexadecimal: -1c0a

Square: 51523684

Square Root: 84.72307831990054

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 triangular sequence of four back recursive polynomial that are Hermite H(x,n) like and alternating orthogonal on domain {-Infinity,Infinity} and weight function Exp[ -x²/2]: P(x, n) = 2·x*P(x, n - 1) - n·P(x, n - 2) + 4·x³*P(x, n - 3)-n²*P(x, n - 4). A138092

Partitions of n with parts having at most 3 distinct magnitudes. A309058

Numbers k such that the continued fraction for sqrt(k) has period 9. A10339

Expansion of ∏_k>=1 1/(1 - x^k*(k+1/2))². A298435

Expansion of g.f. A(x) satisfying 2 = ∑_n=-oo..+oo (-1)ⁿ * x^2·n * (2·A(x) + x^n-2)ⁿ⁺¹. A363107

a(n) = (n³ + 5·n + 18)/6. A60163

Integers k such that prime(k)-1 == 0 (mod φ(k)) where prime(n)=A000040(n) is the n-th prime and φ(n)=A000010(n) is the Euler totient function. A66936

Numbers which are the sum of two squared primes in exactly two ways (ignoring order). A226539

Number of basis partitions of n+16 with Durfee square size 4. A53798

The number of possible values of the squarefree kernel (A007947) shared by at least two solutions·to A056239(x) = n. A88318