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27889942 = 273191027
BaseRepresentation
bin110101001100…
…1000100010110
31221110221210211
41222121010112
524114434232
62433440034
7456026533
oct152310426
957427724
1027889942
111481a143
12941001a
135a16732
1439bdd8a
1526ada47
hex1a99116

27889942 has 8 divisors (see below), whose sum is σ = 42408216. Its totient is φ = 13753872.

The previous prime is 27889937. The next prime is 27889943. The reversal of 27889942 is 24998872.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27889943) 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, 95368 + ... + 95659.

It is an arithmetic number, because the mean of its divisors is an integer number (5301027).

Almost surely, 227889942 is an apocalyptic number.

27889942 is a deficient number, since it is larger than the sum of its proper divisors (14518274).

27889942 is a wasteful number, since it uses less digits than its factorization.

27889942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191102.

The product of its digits is 580608, while the sum is 49.

The square root of 27889942 is about 5281.0928793196. The cubic root of 27889942 is about 303.2605165417.

The spelling of 27889942 in words is "twenty-seven million, eight hundred eighty-nine thousand, nine hundred forty-two".

Divisors: 1 2 73 146 191027 382054 13944971 27889942