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68003516 = 2277179433
BaseRepresentation
bin1000000110110…
…10011010111100
311201221221021202
410003122122330
5114402103031
610425315032
71454006660
oct403323274
9151857252
1068003516
1135428059
121a935a78
131111cb89
1490628a0
155e842cb
hex40da6bc

68003516 has 48 divisors (see below), whose sum is σ = 139991040. Its totient is φ = 28304640.

The previous prime is 68003503. The next prime is 68003539. The reversal of 68003516 is 61530086.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 156836 + ... + 157268.

It is an arithmetic number, because the mean of its divisors is an integer number (2916480).

Almost surely, 268003516 is an apocalyptic number.

It is an amenable number.

68003516 is an abundant number, since it is smaller than the sum of its proper divisors (71987524).

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

68003516 is a wasteful number, since it uses less digits than its factorization.

68003516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 68003516 is about 8246.4244372940. The cubic root of 68003516 is about 408.1725449231.

The spelling of 68003516 in words is "sixty-eight million, three thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 71 79 142 158 284 316 433 497 553 866 994 1106 1732 1988 2212 3031 5609 6062 11218 12124 22436 30743 34207 39263 61486 68414 78526 122972 136828 157052 215201 239449 430402 478898 860804 957796 2428697 4857394 9714788 17000879 34001758 68003516