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68181027 = 3122318583
BaseRepresentation
bin1000001000001…
…01110000100011
311202021221210020
410010011300203
5114423243102
610433204523
71455346335
oct404056043
9152257706
1068181027
1135539462
121aa00743
1311182905
1490ab455
155ebbbbc
hex4105c23

68181027 has 8 divisors (see below), whose sum is σ = 90987264. Its totient is φ = 45414408.

The previous prime is 68181019. The next prime is 68181053. The reversal of 68181027 is 72018186.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68181027 - 23 = 68181019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68181007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5623 + ... + 12960.

It is an arithmetic number, because the mean of its divisors is an integer number (11373408).

Almost surely, 268181027 is an apocalyptic number.

68181027 is a deficient number, since it is larger than the sum of its proper divisors (22806237).

68181027 is a wasteful number, since it uses less digits than its factorization.

68181027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19809.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 68181027 is about 8257.1803298705. The cubic root of 68181027 is about 408.5273901255.

The spelling of 68181027 in words is "sixty-eight million, one hundred eighty-one thousand, twenty-seven".

Divisors: 1 3 1223 3669 18583 55749 22727009 68181027