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2104345668 = 223175362139
BaseRepresentation
bin111110101101101…
…1100010001000100
312102122200211120110
41331123130101010
513302203030133
6544451233020
7103101433365
oct17533342104
95378624513
102104345668
1198a937057
124a88a8770
13276c7cb69
1415d69bb6c
15c4b24c63
hex7d6dc444

2104345668 has 12 divisors (see below), whose sum is σ = 4910139920. Its totient is φ = 701448552.

The previous prime is 2104345657. The next prime is 2104345687. The reversal of 2104345668 is 8665434012.

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, 87681058 + ... + 87681081.

Almost surely, 22104345668 is an apocalyptic number.

It is an amenable number.

2104345668 is an abundant number, since it is smaller than the sum of its proper divisors (2805794252).

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

2104345668 is a wasteful number, since it uses less digits than its factorization.

2104345668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175362146 (or 175362144 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2104345668 is about 45873.1475702289. The cubic root of 2104345668 is about 1281.4618852497.

The spelling of 2104345668 in words is "two billion, one hundred four million, three hundred forty-five thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 175362139 350724278 526086417 701448556 1052172834 2104345668