Properties of the Number -7067

Sixty-Seven

Basics

Value: -7068 → -7067 → -7066

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 37 × 191

Divisors: 1, 37, 191, 7067

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1101110011011

Octal: -15633

Duodecimal: -410B

Hexadecimal: -1b9b

Square: 49942489

Square Root: 84.06545069170807

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

Consider the triangle in which the n-th row starts with n, contains n terms and the difference of successive terms is 1,2,3,... up to n-1. Sequence gives row sums. A81498

A Wallis pair (x,y) satisfies σ(x²) = σ(y²); sequence gives y's for indecomposable Wallis pairs with x < y (ordered by values of x). A75769

Number of series-reduced star graphs with n edges. A2935

Numbers k such that 5·2^k + 3 is prime. A58586

Nonprime numbers n such that q=φ(n)/(σ(n)-n-1) is an integer and n is not a prime square. A70161

Composite terms in A143578. A142591

Smallest k such that the fundamental unit (x+y·w) or (x+y·w)/2 of the real quadratic field Q(sqrt(k)) obeys gcd(k,y)=n. A197170

Least number k such that n divides gcd(σ(k), φ(k)) (A009223). A222713

Composite numbers n such that the sum of numbers x<=n not coprime to n divides the sum of numbers y<=n coprime to n. A238232

Least x = a(n) such that sum of common prime divisors (without multiplicity) of σ(x) and φ(x) equals n, or 0 if such number (apparently) does not exist. A82056