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7668004668 = 2231511422899
BaseRepresentation
bin1110010010000110…
…00111011100111100
3201210101200222220220
413021003013130330
5111201002122133
63304515541340
7361006651512
oct71103073474
921711628826
107668004668
113285430445
12159bbba850
1395282208c
1452a5664b2
152ed2bb5b3
hex1c90c773c

7668004668 has 24 divisors (see below), whose sum is σ = 17903894400. Its totient is φ = 2554303920.

The previous prime is 7668004657. The next prime is 7668004681. The reversal of 7668004668 is 8664008667.

It is a self number, because there is not a number n which added to its sum of digits gives 7668004668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193318 + ... + 229581.

It is an arithmetic number, because the mean of its divisors is an integer number (745995600).

Almost surely, 27668004668 is an apocalyptic number.

It is an amenable number.

7668004668 is an abundant number, since it is smaller than the sum of its proper divisors (10235889732).

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

7668004668 is a wasteful number, since it uses less digits than its factorization.

7668004668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424417 (or 424415 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The square root of 7668004668 is about 87567.1437697953. The cubic root of 7668004668 is about 1971.9419355815.

The spelling of 7668004668 in words is "seven billion, six hundred sixty-eight million, four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1511 3022 4533 6044 9066 18132 422899 845798 1268697 1691596 2537394 5074788 639000389 1278000778 1917001167 2556001556 3834002334 7668004668