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180945162 = 23210052509
BaseRepresentation
bin10101100100100…
…00000100001010
3110121110222002200
422302100010022
5332310221122
625542141030
74325002626
oct1262200412
9417428080
10180945162
1193158862
1250721776
132b645158
141a062186
1510d435ac
hexac9010a

180945162 has 12 divisors (see below), whose sum is σ = 392047890. Its totient is φ = 60315048.

The previous prime is 180945143. The next prime is 180945179. The reversal of 180945162 is 261549081.

180945162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 165096801 + 15848361 = 12849^2 + 3981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5026237 + ... + 5026272.

Almost surely, 2180945162 is an apocalyptic number.

180945162 is an abundant number, since it is smaller than the sum of its proper divisors (211102728).

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

180945162 is a wasteful number, since it uses less digits than its factorization.

180945162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052517 (or 10052514 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 180945162 is about 13451.5858544634. The cubic root of 180945162 is about 565.6081498272.

It can be divided in two parts, 1809 and 45162, that added together give a triangular number (46971 = T306).

The spelling of 180945162 in words is "one hundred eighty million, nine hundred forty-five thousand, one hundred sixty-two".

Divisors: 1 2 3 6 9 18 10052509 20105018 30157527 60315054 90472581 180945162