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68718084 = 2235726507
BaseRepresentation
bin1000001100010…
…00111000000100
311210022020111020
410012020320010
5120042434314
610452511140
71463044161
oct406107004
9153266436
1068718084
1135875a06
121b01b4b0
13113101b6
1491ab068
156075da9
hex4188e04

68718084 has 12 divisors (see below), whose sum is σ = 160342224. Its totient is φ = 22906024.

The previous prime is 68718073. The next prime is 68718109. The reversal of 68718084 is 48081786.

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, 2863242 + ... + 2863265.

It is an arithmetic number, because the mean of its divisors is an integer number (13361852).

Almost surely, 268718084 is an apocalyptic number.

It is an amenable number.

68718084 is an abundant number, since it is smaller than the sum of its proper divisors (91624140).

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

68718084 is a wasteful number, since it uses less digits than its factorization.

68718084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726514 (or 5726512 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 68718084 is about 8289.6371452555. The cubic root of 68718084 is about 409.5972328635.

The spelling of 68718084 in words is "sixty-eight million, seven hundred eighteen thousand, eighty-four".

Divisors: 1 2 3 4 6 12 5726507 11453014 17179521 22906028 34359042 68718084