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142168 = 23131367
BaseRepresentation
bin100010101101011000
321020000111
4202231120
514022133
63014104
71131325
oct425530
9236014
10142168
11978a4
126a334
134c930
1439b4c
152c1cd
hex22b58

142168 has 16 divisors (see below), whose sum is σ = 287280. Its totient is φ = 65568.

The previous prime is 142159. The next prime is 142169. The reversal of 142168 is 861241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580 + ... + 787.

It is an arithmetic number, because the mean of its divisors is an integer number (17955).

2142168 is an apocalyptic number.

It is an amenable number.

142168 is an abundant number, since it is smaller than the sum of its proper divisors (145112).

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

142168 is a wasteful number, since it uses less digits than its factorization.

142168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1382 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 142168 is about 377.0517205902. The cubic root of 142168 is about 52.1916008467.

The spelling of 142168 in words is "one hundred forty-two thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 1367 2734 5468 10936 17771 35542 71084 142168