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142772 = 2275099
BaseRepresentation
bin100010110110110100
321020211212
4202312310
514032042
63020552
71133150
oct426664
9236755
10142772
11982a3
126a758
134cca6
143a060
152c482
hex22db4

142772 has 12 divisors (see below), whose sum is σ = 285600. Its totient is φ = 61176.

The previous prime is 142771. The next prime is 142787. The reversal of 142772 is 277241.

142772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

142772 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142771) 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, 2522 + ... + 2577.

It is an arithmetic number, because the mean of its divisors is an integer number (23800).

2142772 is an apocalyptic number.

It is an amenable number.

142772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142772 is a wasteful number, since it uses less digits than its factorization.

142772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110 (or 5108 counting only the distinct ones).

The product of its digits is 784, while the sum is 23.

The square root of 142772 is about 377.8518228089. The cubic root of 142772 is about 52.2654083354.

The spelling of 142772 in words is "one hundred forty-two thousand, seven hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 4 7 14 28 5099 10198 20396 35693 71386 142772