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7686113 = 53145021
BaseRepresentation
bin11101010100011111100001
3112110111100212
4131110133201
53431423423
6432423505
7122221331
oct35243741
915414325
107686113
11437a766
1226a7b95
1317915c6
1410410c1
15a1c578
hex7547e1

7686113 has 4 divisors (see below), whose sum is σ = 7831188. Its totient is φ = 7541040.

The previous prime is 7686103. The next prime is 7686139. The reversal of 7686113 is 3116867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3157729 + 4528384 = 1777^2 + 2128^2 .

It is a cyclic number.

It is not a de Polignac number, because 7686113 - 28 = 7685857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7686113.

It is not an unprimeable number, because it can be changed into a prime (7686103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72458 + ... + 72563.

It is an arithmetic number, because the mean of its divisors is an integer number (1957797).

Almost surely, 27686113 is an apocalyptic number.

It is an amenable number.

7686113 is a deficient number, since it is larger than the sum of its proper divisors (145075).

7686113 is a wasteful number, since it uses less digits than its factorization.

7686113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145074.

The product of its digits is 6048, while the sum is 32.

The square root of 7686113 is about 2772.3839921627. The cubic root of 7686113 is about 197.3492991277.

The spelling of 7686113 in words is "seven million, six hundred eighty-six thousand, one hundred thirteen".

Divisors: 1 53 145021 7686113