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142729027 = 773327817
BaseRepresentation
bin10001000000111…
…01111101000011
3100221120101102021
420200131331003
5243014312102
622055102311
73352114420
oct1040357503
9327511367
10142729027
1173626481
123b971997
132375455c
1414d54d47
15c7e5137
hex881df43

142729027 has 8 divisors (see below), whose sum is σ = 163347296. Its totient is φ = 122167872.

The previous prime is 142729021. The next prime is 142729031. The reversal of 142729027 is 720927241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142729027 - 23 = 142729019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142728983 and 142729001.

It is not an unprimeable number, because it can be changed into a prime (142729021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8778 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (20418412).

Almost surely, 2142729027 is an apocalyptic number.

142729027 is a deficient number, since it is larger than the sum of its proper divisors (20618269).

142729027 is an equidigital number, since it uses as much as digits as its factorization.

142729027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28557.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 142729027 is about 11946.9254203749. The cubic root of 142729027 is about 522.6016401402.

The spelling of 142729027 in words is "one hundred forty-two million, seven hundred twenty-nine thousand, twenty-seven".

Divisors: 1 7 733 5131 27817 194719 20389861 142729027