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7688004 = 223640667
BaseRepresentation
bin11101010100111101000100
3112110120221220
4131110331010
53432004004
6432440340
7122230002
oct35247504
915416856
107688004
114381125
1226a90b0
13179241c
141041a72
15a1cdd9
hex754f44

7688004 has 12 divisors (see below), whose sum is σ = 17938704. Its totient is φ = 2562664.

The previous prime is 7687993. The next prime is 7688011. The reversal of 7688004 is 4008867.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320322 + ... + 320345.

It is an arithmetic number, because the mean of its divisors is an integer number (1494892).

Almost surely, 27688004 is an apocalyptic number.

It is an amenable number.

7688004 is an abundant number, since it is smaller than the sum of its proper divisors (10250700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7688004 is a wasteful number, since it uses less digits than its factorization.

7688004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640674 (or 640672 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 7688004 is about 2772.7250134119. The cubic root of 7688004 is about 197.3654822936.

The spelling of 7688004 in words is "seven million, six hundred eighty-eight thousand, four".

Divisors: 1 2 3 4 6 12 640667 1281334 1922001 2562668 3844002 7688004