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27284018 = 289153281
BaseRepresentation
bin110100000010…
…1001000110010
31220100011122012
41220011020302
523441042033
62412442522
7450624146
oct150051062
956304565
1027284018
1114445983
129179442
1358639b8
1438a3226
1525de248
hex1a05232

27284018 has 8 divisors (see below), whose sum is σ = 41386140. Its totient is φ = 13488640.

The previous prime is 27283987. The next prime is 27284027. The reversal of 27284018 is 81048272.

It can be written as a sum of positive squares in 2 ways, for example, as 26450449 + 833569 = 5143^2 + 913^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76463 + ... + 76818.

Almost surely, 227284018 is an apocalyptic number.

27284018 is a deficient number, since it is larger than the sum of its proper divisors (14102122).

27284018 is a wasteful number, since it uses less digits than its factorization.

27284018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153372.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 27284018 is about 5223.4105716476. The cubic root of 27284018 is about 301.0482514818.

The spelling of 27284018 in words is "twenty-seven million, two hundred eighty-four thousand, eighteen".

Divisors: 1 2 89 178 153281 306562 13642009 27284018