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142243882 = 21129322067
BaseRepresentation
bin10000111101001…
…11100000101010
3100220122201220221
420132213200222
5242403301012
622040440254
73345024124
oct1036474052
9326581827
10142243882
1173324a30
123b77908a
13236147a1
1414c6a214
15c74b507
hex87a782a

142243882 has 16 divisors (see below), whose sum is σ = 233567712. Its totient is φ = 64432720.

The previous prime is 142243853. The next prime is 142243889. The reversal of 142243882 is 288342241.

It is not an unprimeable number, because it can be changed into a prime (142243889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4588 + ... + 17479.

It is an arithmetic number, because the mean of its divisors is an integer number (14597982).

Almost surely, 2142243882 is an apocalyptic number.

142243882 is a deficient number, since it is larger than the sum of its proper divisors (91323830).

142243882 is a wasteful number, since it uses less digits than its factorization.

142243882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22373.

The product of its digits is 24576, while the sum is 34.

The square root of 142243882 is about 11926.6039592166. The cubic root of 142243882 is about 522.0088492992.

The spelling of 142243882 in words is "one hundred forty-two million, two hundred forty-three thousand, eight hundred eighty-two".

Divisors: 1 2 11 22 293 586 3223 6446 22067 44134 242737 485474 6465631 12931262 71121941 142243882