Properties of the Number -7486

Four Hundred Eighty-Six

Basics

Value: -7487 → -7486 → -7485

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 19 × 197

Divisors: 1, 2, 19, 38, 197, 394, 3743, 7486

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -1110100111110

Octal: -16476

Duodecimal: -43BA

Hexadecimal: -1d3e

Square: 56040196

Square Root: 86.52167358529307

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

G.f. A(x) satisfies: A(x) = ∏_k>=1 (1 - x^k*A(x)^k)^k. A301624

Number of strict integer partitions of n with at least two but not all parts having a common divisor greater than 1. A303140

Positive integers k such that 13^k == 9 (mod k). A116636

Number of subsets of {1,2,3,...,n} whose sum is prime. A127542

Sum of the squarefree parts of the partitions of n into 5 parts. A309480

Number of subsets of {1..n} not containing their mean. A327471

a(n) = a(n-2) + a(n-4) + a(n-5) + a(n-7) + a(n-8) + a(n-10) for n >= 10, with a(0) = ... = a(9) = 1. A122762

Numbers of intervals for the pruning-grafting lattices of size n. A152093

First differences of A163891. A163893

n written in fractional base 10/7. A24662