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12704027 = 719234153
BaseRepresentation
bin110000011101…
…100100011011
3212220102122112
4300131210123
511223012102
61132142535
7212660660
oct60354433
925812575
1012704027
1171977a6
124307a4b
13282a59b
141989a67
1511ae252
hexc1d91b

12704027 has 16 divisors (see below), whose sum is σ = 15951360. Its totient is φ = 9865152.

The previous prime is 12704023. The next prime is 12704089. The reversal of 12704027 is 72040721.

12704027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12704027 - 22 = 12704023 is a prime.

It is a super-2 number, since 2×127040272 = 322784604033458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12703993 and 12704011.

It is not an unprimeable number, because it can be changed into a prime (12704023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983 + ... + 5135.

It is an arithmetic number, because the mean of its divisors is an integer number (996960).

Almost surely, 212704027 is an apocalyptic number.

12704027 is a deficient number, since it is larger than the sum of its proper divisors (3247333).

12704027 is a wasteful number, since it uses less digits than its factorization.

12704027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 12704027 is about 3564.2708931842. The cubic root of 12704027 is about 233.3353126816.

Adding to 12704027 its reverse (72040721), we get a palindrome (84744748).

The spelling of 12704027 in words is "twelve million, seven hundred four thousand, twenty-seven".

Divisors: 1 7 19 23 133 161 437 3059 4153 29071 78907 95519 552349 668633 1814861 12704027