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27638113 = 97499571
BaseRepresentation
bin110100101101…
…1100101100001
31221000011100211
41221123211201
524033404423
62424214121
7453630406
oct151334541
957004324
1027638113
1114667a18
12930a341
135958c19
1439562ad
15265e10d
hex1a5b961

27638113 has 8 divisors (see below), whose sum is σ = 28028000. Its totient is φ = 27250560.

The previous prime is 27638101. The next prime is 27638119. The reversal of 27638113 is 31183672.

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

It is a cyclic number.

It is not a de Polignac number, because 27638113 - 221 = 25540961 is a prime.

It is a super-3 number, since 3×276381133 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27638119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48118 + ... + 48688.

It is an arithmetic number, because the mean of its divisors is an integer number (3503500).

Almost surely, 227638113 is an apocalyptic number.

It is an amenable number.

27638113 is a deficient number, since it is larger than the sum of its proper divisors (389887).

27638113 is an equidigital number, since it uses as much as digits as its factorization.

27638113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167.

The product of its digits is 6048, while the sum is 31.

The square root of 27638113 is about 5257.1963060171. The cubic root of 27638113 is about 302.3450035819.

It can be divided in two parts, 276381 and 13, that multiplied together give a palindrome (3592953).

The spelling of 27638113 in words is "twenty-seven million, six hundred thirty-eight thousand, one hundred thirteen".

Divisors: 1 97 499 571 48403 55387 284929 27638113