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68206790 = 258098431
BaseRepresentation
bin1000001000011…
…00000011000110
311202100021010102
410010030003012
5114430104130
610433524102
71455514421
oct404140306
9152307112
1068206790
1135556853
121aa13632
1311191562
1490b69b8
155ec4645
hex410c0c6

68206790 has 16 divisors (see below), whose sum is σ = 122938560. Its totient is φ = 27245760.

The previous prime is 68206777. The next prime is 68206843. The reversal of 68206790 is 9760286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (7683660).

Almost surely, 268206790 is an apocalyptic number.

68206790 is a deficient number, since it is larger than the sum of its proper divisors (54731770).

68206790 is a wasteful number, since it uses less digits than its factorization.

68206790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 68206790 is about 8258.7402187016. The cubic root of 68206790 is about 408.5788392663.

The spelling of 68206790 in words is "sixty-eight million, two hundred six thousand, seven hundred ninety".

Divisors: 1 2 5 10 809 1618 4045 8090 8431 16862 42155 84310 6820679 13641358 34103395 68206790