Base | Representation |
---|---|
bin | 110000100101… |
… | …111001000011 |
3 | 212222011102001 |
4 | 300211321003 |
5 | 11230104430 |
6 | 1133004431 |
7 | 213162235 |
oct | 60457103 |
9 | 25864361 |
10 | 12738115 |
11 | 7210375 |
12 | 4323717 |
13 | 283cc60 |
14 | 1998255 |
15 | 11b93ca |
hex | c25e43 |
12738115 has 8 divisors (see below), whose sum is σ = 16461648. Its totient is φ = 9406560.
The previous prime is 12738059. The next prime is 12738119. The reversal of 12738115 is 51183721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12738115 - 29 = 12737603 is a prime.
It is a super-3 number, since 3×127381153 (a number of 22 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12738119) 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 7 ways as a sum of consecutive naturals, for example, 97921 + ... + 98050.
It is an arithmetic number, because the mean of its divisors is an integer number (2057706).
Almost surely, 212738115 is an apocalyptic number.
12738115 is a deficient number, since it is larger than the sum of its proper divisors (3723533).
12738115 is a wasteful number, since it uses less digits than its factorization.
12738115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 195989.
The product of its digits is 1680, while the sum is 28.
The square root of 12738115 is about 3569.0495933792. The cubic root of 12738115 is about 233.5438247965.
The spelling of 12738115 in words is "twelve million, seven hundred thirty-eight thousand, one hundred fifteen".
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