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68286028 = 2217071507
BaseRepresentation
bin1000001000111…
…11011001001100
311202111021211011
410010133121030
5114440123103
610435335004
71456264426
oct404373114
9152437734
1068286028
1135600338
121aa51464
13111bb645
1490d7816
155edcd6d
hex411f64c

68286028 has 6 divisors (see below), whose sum is σ = 119500556. Its totient is φ = 34143012.

The previous prime is 68285989. The next prime is 68286037. The reversal of 68286028 is 82068286.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8535750 + ... + 8535757.

Almost surely, 268286028 is an apocalyptic number.

It is an amenable number.

68286028 is a deficient number, since it is larger than the sum of its proper divisors (51214528).

68286028 is a wasteful number, since it uses less digits than its factorization.

68286028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17071511 (or 17071509 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 68286028 is about 8263.5360469959. The cubic root of 68286028 is about 408.7369977191.

The spelling of 68286028 in words is "sixty-eight million, two hundred eighty-six thousand, twenty-eight".

Divisors: 1 2 4 17071507 34143014 68286028