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226788 = 22318899
BaseRepresentation
bin110111010111100100
3102112002120
4313113210
524224123
64505540
71633122
oct672744
9375076
10226788
11145431
12ab2b0
137c2c3
145c912
15472e3
hex375e4

226788 has 12 divisors (see below), whose sum is σ = 529200. Its totient is φ = 75592.

The previous prime is 226783. The next prime is 226789. The reversal of 226788 is 887622.

226788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (226783) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9438 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2226788 is an apocalyptic number.

It is an amenable number.

226788 is an abundant number, since it is smaller than the sum of its proper divisors (302412).

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

226788 is a wasteful number, since it uses less digits than its factorization.

226788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18906 (or 18904 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 226788 is about 476.2226370092. Note that the first 3 decimals coincide. The cubic root of 226788 is about 60.9827058382.

The spelling of 226788 in words is "two hundred twenty-six thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 18899 37798 56697 75596 113394 226788