Properties of the Number -102827

One Hundred Two Thousand Eight Hundred Twenty-Seven

Basics

Value: -102828 → -102827 → -102826

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 31 ² × 107

Divisors: 1, 31, 107, 961, 3317, 102827

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11001000110101011

Octal: -310653

Duodecimal: -4B60B

Hexadecimal: -191ab

Square: 10573391929

Square Root: 320.6664934164466

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

Becomes prime after n iterations of f(x) = φ(x)+1 (least inverse of A039651). A39652

Somos's sequence {a(5,n)} defined in comment in A018896: a(0)=a(1)= ... = a(11) = 1; for n>=12, a(n) = (a(n-1)*a(n-11) + a(n-6)²)/a(n-12). A271835

Let P(A) be the power set of an n-element set A. Then a(n) = the number of pairs of elements {x,y} of P(A) for which either 0) x and y are intersecting but for which·is not a subset of y and y is not a subset of x, or 1) x = y. A134019