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142188882 = 23113496173
BaseRepresentation
bin10000111100110…
…10000101010010
3100220112221110220
420132122011102
5242400021012
622035333510
73344404563
oct1036320522
9326487426
10142188882
1173297680
123b751296
13235c5744
1414c5416a
15c73a08c
hex879a152

142188882 has 32 divisors (see below), whose sum is σ = 311169600. Its totient is φ = 42957120.

The previous prime is 142188881. The next prime is 142188919. The reversal of 142188882 is 288881241.

It is not an unprimeable number, because it can be changed into a prime (142188881) 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, 19948 + ... + 26120.

It is an arithmetic number, because the mean of its divisors is an integer number (9724050).

Almost surely, 2142188882 is an apocalyptic number.

142188882 is an abundant number, since it is smaller than the sum of its proper divisors (168980718).

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

142188882 is a wasteful number, since it uses less digits than its factorization.

142188882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538.

The product of its digits is 65536, while the sum is 42.

The square root of 142188882 is about 11924.2979667568. The cubic root of 142188882 is about 521.9415606691.

The spelling of 142188882 in words is "one hundred forty-two million, one hundred eighty-eight thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 349 698 1047 2094 3839 6173 7678 11517 12346 18519 23034 37038 67903 135806 203709 407418 2154377 4308754 6463131 12926262 23698147 47396294 71094441 142188882