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68764227 = 3723142369
BaseRepresentation
bin1000001100101…
…00001001000011
311210101120210020
410012110021003
5120100423402
610453504523
71463325540
oct406241103
9153346706
1068764227
11358a7644
121b042143
13113281bc
1491bdbc7
1560848bc
hex4194243

68764227 has 16 divisors (see below), whose sum is σ = 109340160. Its totient is φ = 37585152.

The previous prime is 68764187. The next prime is 68764237. The reversal of 68764227 is 72246786.

It is not a de Polignac number, because 68764227 - 28 = 68763971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68764237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70702 + ... + 71667.

It is an arithmetic number, because the mean of its divisors is an integer number (6833760).

Almost surely, 268764227 is an apocalyptic number.

68764227 is a deficient number, since it is larger than the sum of its proper divisors (40575933).

68764227 is a wasteful number, since it uses less digits than its factorization.

68764227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142402.

The product of its digits is 225792, while the sum is 42.

The square root of 68764227 is about 8292.4198518888. The cubic root of 68764227 is about 409.6888914937.

The spelling of 68764227 in words is "sixty-eight million, seven hundred sixty-four thousand, two hundred twenty-seven".

Divisors: 1 3 7 21 23 69 161 483 142369 427107 996583 2989749 3274487 9823461 22921409 68764227