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68003616 = 253708371
BaseRepresentation
bin1000000110110…
…10011100100000
311201221221102110
410003122130200
5114402103431
610425315320
71454010162
oct403323440
9151857373
1068003616
113542813a
121a935b40
131111cc35
149062932
155e84346
hex40da720

68003616 has 24 divisors (see below), whose sum is σ = 178509744. Its totient is φ = 22667840.

The previous prime is 68003609. The next prime is 68003623. The reversal of 68003616 is 61630086.

It is an interprime number because it is at equal distance from previous prime (68003609) and next prime (68003623).

It is a tau number, because it is divible by the number of its divisors (24).

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, 354090 + ... + 354281.

It is an arithmetic number, because the mean of its divisors is an integer number (7437906).

Almost surely, 268003616 is an apocalyptic number.

It is an amenable number.

68003616 is an abundant number, since it is smaller than the sum of its proper divisors (110506128).

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

68003616 is a wasteful number, since it uses less digits than its factorization.

68003616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708384 (or 708376 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 68003616 is about 8246.4305005257. The cubic root of 68003616 is about 408.1727449972.

The spelling of 68003616 in words is "sixty-eight million, three thousand, six hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 708371 1416742 2125113 2833484 4250226 5666968 8500452 11333936 17000904 22667872 34001808 68003616