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142108868 = 22114337459
BaseRepresentation
bin10000111100001…
…10100011000100
3100220101212201102
420132012203010
5242334440433
622033515232
73343622366
oct1036064304
9326355642
10142108868
1173242550
123b712b18
13235981b5
1414c32d36
15c7214e8
hex87868c4

142108868 has 24 divisors (see below), whose sum is σ = 271961760. Its totient is φ = 64437120.

The previous prime is 142108861. The next prime is 142108873. The reversal of 142108868 is 868801241.

142108868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142108861) 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 7 ways as a sum of consecutive naturals, for example, 15323 + ... + 22781.

It is an arithmetic number, because the mean of its divisors is an integer number (11331740).

Almost surely, 2142108868 is an apocalyptic number.

It is an amenable number.

142108868 is a deficient number, since it is larger than the sum of its proper divisors (129852892).

142108868 is a wasteful number, since it uses less digits than its factorization.

142108868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 142108868 is about 11920.9424124102. The cubic root of 142108868 is about 521.8436381789.

The spelling of 142108868 in words is "one hundred forty-two million, one hundred eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 433 866 1732 4763 7459 9526 14918 19052 29836 82049 164098 328196 3229747 6459494 12918988 35527217 71054434 142108868