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189680229 = 3224678543
BaseRepresentation
bin10110100111001…
…00101001100101
3111012220202100200
423103210221211
5342024231404
630453301113
74462153404
oct1323445145
9435822320
10189680229
1198084622
1253634799
13303b302b
141b29763b
15119bb839
hexb4e4a65

189680229 has 12 divisors (see below), whose sum is σ = 274125696. Its totient is φ = 126387432.

The previous prime is 189680219. The next prime is 189680243. The reversal of 189680229 is 922086981.

189680229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189680229 - 212 = 189676133 is a prime.

It is a super-4 number, since 4×1896802294 (a number of 34 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189680219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17932 + ... + 26474.

It is an arithmetic number, because the mean of its divisors is an integer number (22843808).

Almost surely, 2189680229 is an apocalyptic number.

It is an amenable number.

189680229 is a deficient number, since it is larger than the sum of its proper divisors (84445467).

189680229 is a wasteful number, since it uses less digits than its factorization.

189680229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016 (or 11013 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 189680229 is about 13772.4445542540. Note that the first 3 decimals coincide. The cubic root of 189680229 is about 574.5670126594.

The spelling of 189680229 in words is "one hundred eighty-nine million, six hundred eighty thousand, two hundred twenty-nine".

Divisors: 1 3 9 2467 7401 8543 22203 25629 76887 21075581 63226743 189680229