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142870327 = 294926563
BaseRepresentation
bin10001000010000…
…00011100110111
3100221211120020121
420201000130313
5243033322302
622102112411
73353243365
oct1041003467
9327746217
10142870327
1173712656
123ba1b707
13237a3972
1414d90635
15c821e37
hex8840737

142870327 has 4 divisors (see below), whose sum is σ = 147796920. Its totient is φ = 137943736.

The previous prime is 142870249. The next prime is 142870339. The reversal of 142870327 is 723078241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723078241 = 1993633559.

It is a cyclic number.

It is not a de Polignac number, because 142870327 - 223 = 134481719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142870292 and 142870301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142870127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2463253 + ... + 2463310.

It is an arithmetic number, because the mean of its divisors is an integer number (36949230).

Almost surely, 2142870327 is an apocalyptic number.

142870327 is a deficient number, since it is larger than the sum of its proper divisors (4926593).

142870327 is an equidigital number, since it uses as much as digits as its factorization.

142870327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926592.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 142870327 is about 11952.8376128851. The cubic root of 142870327 is about 522.7740396831.

The spelling of 142870327 in words is "one hundred forty-two million, eight hundred seventy thousand, three hundred twenty-seven".

Divisors: 1 29 4926563 142870327