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6668904804 = 2232381233407
BaseRepresentation
bin1100011010111111…
…10110100101100100
3122012202201110120020
412031133312211210
5102124214423204
63021425435140
7324155520102
oct61537664544
918182643506
106668904804
112912471981
12136149bab0
1382383b823
144739b0c72
15290716bd9
hex18d7f6964

6668904804 has 24 divisors (see below), whose sum is σ = 15567379968. Its totient is φ = 2222025120.

The previous prime is 6668904793. The next prime is 6668904877. The reversal of 6668904804 is 4084098666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88132 + ... + 145275.

It is an arithmetic number, because the mean of its divisors is an integer number (648640832).

Almost surely, 26668904804 is an apocalyptic number.

It is an amenable number.

6668904804 is an abundant number, since it is smaller than the sum of its proper divisors (8898475164).

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

6668904804 is a wasteful number, since it uses less digits than its factorization.

6668904804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235795 (or 235793 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The square root of 6668904804 is about 81663.3626787435. The cubic root of 6668904804 is about 1882.2826509838.

The spelling of 6668904804 in words is "six billion, six hundred sixty-eight million, nine hundred four thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 2381 4762 7143 9524 14286 28572 233407 466814 700221 933628 1400442 2800884 555742067 1111484134 1667226201 2222968268 3334452402 6668904804