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68201180 = 2257148029
BaseRepresentation
bin1000001000010…
…10101011011100
311202022222102122
410010022223130
5114424414210
610433442112
71455462155
oct404125334
9152288378
1068201180
1135552613
121aa10338
131118bb38
1490b492c
155ec2b55
hex410aadc

68201180 has 24 divisors (see below), whose sum is σ = 145242720. Its totient is φ = 26895680.

The previous prime is 68201173. The next prime is 68201201. The reversal of 68201180 is 8110286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22595 + ... + 25434.

It is an arithmetic number, because the mean of its divisors is an integer number (6051780).

Almost surely, 268201180 is an apocalyptic number.

It is an amenable number.

68201180 is an abundant number, since it is smaller than the sum of its proper divisors (77041540).

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

68201180 is a wasteful number, since it uses less digits than its factorization.

68201180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48109 (or 48107 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 68201180 is about 8258.4005715393. The cubic root of 68201180 is about 408.5676371062.

It can be divided in two parts, 6820 and 1180, that added together give a cube (8000 = 203).

The spelling of 68201180 in words is "sixty-eight million, two hundred one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 48029 96058 192116 240145 480290 960580 3410059 6820118 13640236 17050295 34100590 68201180