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27868630 = 2519146677
BaseRepresentation
bin110101001001…
…1110111010110
31221102212120111
41222103313112
524113244010
62433153234
7455610436
oct152236726
957385514
1027868630
1114805129
1293bb81a
135a09b1a
1439b62c6
1526a758a
hex1a93dd6

27868630 has 16 divisors (see below), whose sum is σ = 52804080. Its totient is φ = 10560672.

The previous prime is 27868567. The next prime is 27868637. The reversal of 27868630 is 3686872.

It is a happy number.

It is a super-3 number, since 3×278686303 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27868637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73149 + ... + 73528.

It is an arithmetic number, because the mean of its divisors is an integer number (3300255).

Almost surely, 227868630 is an apocalyptic number.

27868630 is a deficient number, since it is larger than the sum of its proper divisors (24935450).

27868630 is a wasteful number, since it uses less digits than its factorization.

27868630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146703.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 27868630 is about 5279.0747295336. The cubic root of 27868630 is about 303.1832517093.

The spelling of 27868630 in words is "twenty-seven million, eight hundred sixty-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 146677 293354 733385 1466770 2786863 5573726 13934315 27868630