Properties of the Number -7001

One

Basics

Value: -7002 → -7001 → -7000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 7001

Divisors: 1, 7001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101101011001

Octal: -15531

Duodecimal: -4075

Hexadecimal: -1b59

Square: 49014001

Square Root: 83.6719785830358

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) = ∑_{k = 0..n} (-1)^k * binomial(n,k) * binomial(2·n,k). A234839

Coefficients of Hankel moment polynomials for c=1/2:f(a,b) = γ[a + b]/γ[a] p(x,n)=Sum[Binomial(n, k)*(f(c, n)/(f(c, n - k)*f(c, k)))*x^k, {k, 0, n}]. A171605

Primes with first digit 7. A45713

Primes all of whose internal digits (if any) are 0. A69675

Primes whose sum of digits is 8. A62343

G.f. satisfies A(x) = x + x·A(A(A(x))). A91713

Number of cyclic compositions (necklaces of positive integers) summing to n that have only one part or whose consecutive parts (including the last with first) are indivisible. A318729

a(n) = prime(R(prime(n))) where prime(i) is the i-th prime and R(p) is the value of the reverse of the digits of p. A124179

Primes having only {0, 1, 7} as digits. A199327

a(n) = n²*(2·n⁸ + 120·n⁶ + 1806·n⁴ + 7180·n² + 5067)/14175. A99197