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142881164 = 2235720291
BaseRepresentation
bin10001000010000…
…11000110001100
3100221212010002222
420201003012030
5243034144124
622102234512
73353320106
oct1041030614
9327763088
10142881164
117371a808
123ba25a38
13237a888a
1414d94576
15c82525e
hex884318c

142881164 has 6 divisors (see below), whose sum is σ = 250042044. Its totient is φ = 71440580.

The previous prime is 142881149. The next prime is 142881191. The reversal of 142881164 is 461188241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17860142 + ... + 17860149.

It is an arithmetic number, because the mean of its divisors is an integer number (41673674).

Almost surely, 2142881164 is an apocalyptic number.

It is an amenable number.

142881164 is a deficient number, since it is larger than the sum of its proper divisors (107160880).

142881164 is a wasteful number, since it uses less digits than its factorization.

142881164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35720295 (or 35720293 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 142881164 is about 11953.2909276065. The cubic root of 142881164 is about 522.7872571677.

The spelling of 142881164 in words is "one hundred forty-two million, eight hundred eighty-one thousand, one hundred sixty-four".

Divisors: 1 2 4 35720291 71440582 142881164