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68646288202 = 250368236867
BaseRepresentation
bin111111111011101000…
…110011101101001010
320120012002002202101121
4333323220303231022
52111041422210302
651311412105454
74650055552012
oct777350635512
9216162082347
1068646288202
1127127049398
121137960528a
13661cb5495b
143472d12c42
151bbb860e37
hexffba33b4a

68646288202 has 8 divisors (see below), whose sum is σ = 103174144416. Its totient is φ = 34254906732.

The previous prime is 68646288199. The next prime is 68646288283. The reversal of 68646288202 is 20288264686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68646288202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34117428 + ... + 34119439.

It is an arithmetic number, because the mean of its divisors is an integer number (12896768052).

Almost surely, 268646288202 is an apocalyptic number.

68646288202 is a deficient number, since it is larger than the sum of its proper divisors (34527856214).

68646288202 is a wasteful number, since it uses less digits than its factorization.

68646288202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68237372.

The product of its (nonzero) digits is 3538944, while the sum is 52.

The spelling of 68646288202 in words is "sixty-eight billion, six hundred forty-six million, two hundred eighty-eight thousand, two hundred two".

Divisors: 1 2 503 1006 68236867 136473734 34323144101 68646288202