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27189142 = 273186227
BaseRepresentation
bin110011110110…
…1111110010110
31220011100111021
41213231332112
523430023032
62410431354
7450050431
oct147557626
956140437
1027189142
1114390672
12913255a
13582c766
14387a818
1525c1097
hex19edf96

27189142 has 8 divisors (see below), whose sum is σ = 41342616. Its totient is φ = 13408272.

The previous prime is 27189101. The next prime is 27189143. The reversal of 27189142 is 24198172.

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

It is a junction number, because it is equal to n+sod(n) for n = 27189098 and 27189107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27189143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92968 + ... + 93259.

It is an arithmetic number, because the mean of its divisors is an integer number (5167827).

Almost surely, 227189142 is an apocalyptic number.

27189142 is a deficient number, since it is larger than the sum of its proper divisors (14153474).

27189142 is a wasteful number, since it uses less digits than its factorization.

27189142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186302.

The product of its digits is 8064, while the sum is 34.

The square root of 27189142 is about 5214.3208570244. The cubic root of 27189142 is about 300.6988964739.

The spelling of 27189142 in words is "twenty-seven million, one hundred eighty-nine thousand, one hundred forty-two".

Divisors: 1 2 73 146 186227 372454 13594571 27189142