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68071092 = 2235672591
BaseRepresentation
bin1000000111010…
…10111010110100
311202002100222120
410003222322310
5114411233332
610430555540
71454410665
oct403527264
9152070876
1068071092
1135473901
121a968bb0
131114486b
14907d36c
155e9932c
hex40eaeb4

68071092 has 12 divisors (see below), whose sum is σ = 158832576. Its totient is φ = 22690360.

The previous prime is 68071057. The next prime is 68071093. The reversal of 68071092 is 29017086.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68071093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2836284 + ... + 2836307.

It is an arithmetic number, because the mean of its divisors is an integer number (13236048).

Almost surely, 268071092 is an apocalyptic number.

It is an amenable number.

68071092 is an abundant number, since it is smaller than the sum of its proper divisors (90761484).

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

68071092 is a wasteful number, since it uses less digits than its factorization.

68071092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672598 (or 5672596 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 68071092 is about 8250.5207108400. The cubic root of 68071092 is about 408.3077023294.

The spelling of 68071092 in words is "sixty-eight million, seventy-one thousand, ninety-two".

Divisors: 1 2 3 4 6 12 5672591 11345182 17017773 22690364 34035546 68071092