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68198716 = 22102116699
BaseRepresentation
bin1000001000010…
…10000100111100
311202022212001101
410010022010330
5114424324331
610433422444
71455452035
oct404120474
9152285041
1068198716
1135550783
121aa0aa24
131118a991
1490b3a8c
155ec2061
hex410a13c

68198716 has 12 divisors (see below), whose sum is σ = 119471800. Its totient is φ = 34063920.

The previous prime is 68198707. The next prime is 68198723. The reversal of 68198716 is 61789186.

It is a congruent number.

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, 4266 + ... + 12433.

Almost surely, 268198716 is an apocalyptic number.

It is an amenable number.

68198716 is a deficient number, since it is larger than the sum of its proper divisors (51273084).

68198716 is a wasteful number, since it uses less digits than its factorization.

68198716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17724 (or 17722 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 68198716 is about 8258.2513887626. The cubic root of 68198716 is about 408.5627167477.

The spelling of 68198716 in words is "sixty-eight million, one hundred ninety-eight thousand, seven hundred sixteen".

Divisors: 1 2 4 1021 2042 4084 16699 33398 66796 17049679 34099358 68198716