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142052 = 22172089
BaseRepresentation
bin100010101011100100
321012212012
4202223210
514021202
63013352
71131101
oct425344
9235765
10142052
11977a9
126a258
134c871
1439aa8
152c152
hex22ae4

142052 has 12 divisors (see below), whose sum is σ = 263340. Its totient is φ = 66816.

The previous prime is 142049. The next prime is 142057. The reversal of 142052 is 250241.

It can be written as a sum of positive squares in 2 ways, for example, as 118336 + 23716 = 344^2 + 154^2 .

It is not an unprimeable number, because it can be changed into a prime (142057) 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, 977 + ... + 1112.

It is an arithmetic number, because the mean of its divisors is an integer number (21945).

2142052 is an apocalyptic number.

It is an amenable number.

142052 is a deficient number, since it is larger than the sum of its proper divisors (121288).

142052 is a wasteful number, since it uses less digits than its factorization.

142052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 142052 is about 376.8978641489. The cubic root of 142052 is about 52.1774019809.

Adding to 142052 its reverse (250241), we get a palindrome (392293).

The spelling of 142052 in words is "one hundred forty-two thousand, fifty-two".

Divisors: 1 2 4 17 34 68 2089 4178 8356 35513 71026 142052