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7067668 = 228919853
BaseRepresentation
bin11010111101100000010100
3111022002000111
4122331200110
53302131133
6411252404
7114034306
oct32754024
914262014
107067668
113a98053
12244a104
131605c6a
14d1d976
159491cd
hex6bd814

7067668 has 12 divisors (see below), whose sum is σ = 12508020. Its totient is φ = 3493952.

The previous prime is 7067663. The next prime is 7067681. The reversal of 7067668 is 8667607.

It can be written as a sum of positive squares in 2 ways, for example, as 1249924 + 5817744 = 1118^2 + 2412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7067668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9571 + ... + 10282.

It is an arithmetic number, because the mean of its divisors is an integer number (1042335).

Almost surely, 27067668 is an apocalyptic number.

It is an amenable number.

7067668 is a deficient number, since it is larger than the sum of its proper divisors (5440352).

7067668 is a wasteful number, since it uses less digits than its factorization.

7067668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19946 (or 19944 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 7067668 is about 2658.5086044623. The cubic root of 7067668 is about 191.9075437378.

The spelling of 7067668 in words is "seven million, sixty-seven thousand, six hundred sixty-eight".

Divisors: 1 2 4 89 178 356 19853 39706 79412 1766917 3533834 7067668