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142529863 = 720361409
BaseRepresentation
bin10000111111011…
…01010101000111
3100221012021012211
420133231111013
5242441423423
622050524251
73350324650
oct1037552507
9327167184
10142529863
11734aa883
123b896687
13236b49c8
1414d02527
15c7a610d
hex87ed547

142529863 has 4 divisors (see below), whose sum is σ = 162891280. Its totient is φ = 122168448.

The previous prime is 142529861. The next prime is 142529917. The reversal of 142529863 is 368925241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142529863 - 21 = 142529861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142529861) 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, 10180698 + ... + 10180711.

It is an arithmetic number, because the mean of its divisors is an integer number (40722820).

Almost surely, 2142529863 is an apocalyptic number.

142529863 is a deficient number, since it is larger than the sum of its proper divisors (20361417).

142529863 is an equidigital number, since it uses as much as digits as its factorization.

142529863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20361416.

The product of its digits is 103680, while the sum is 40.

The square root of 142529863 is about 11938.5871442143. The cubic root of 142529863 is about 522.3584476482.

The spelling of 142529863 in words is "one hundred forty-two million, five hundred twenty-nine thousand, eight hundred sixty-three".

Divisors: 1 7 20361409 142529863