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12704045 = 523910631
BaseRepresentation
bin110000011101…
…100100101101
3212220102200012
4300131210231
511223012140
61132143005
7212661014
oct60354455
925812605
1012704045
117197812
124307a65
13282a5b3
141989a7b
1511ae265
hexc1d92d

12704045 has 8 divisors (see below), whose sum is σ = 15310080. Its totient is φ = 10119760.

The previous prime is 12704023. The next prime is 12704089. The reversal of 12704045 is 54040721.

12704045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12704045 - 212 = 12699949 is a prime.

It is a super-2 number, since 2×127040452 = 322785518724050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12704045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4121 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (1913760).

Almost surely, 212704045 is an apocalyptic number.

It is an amenable number.

12704045 is a deficient number, since it is larger than the sum of its proper divisors (2606035).

12704045 is a wasteful number, since it uses less digits than its factorization.

12704045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12704045 is about 3564.2734182439. The cubic root of 12704045 is about 233.3354228838.

Adding to 12704045 its reverse (54040721), we get a palindrome (66744766).

The spelling of 12704045 in words is "twelve million, seven hundred four thousand, forty-five".

Divisors: 1 5 239 1195 10631 53155 2540809 12704045