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12706633 = 17747449
BaseRepresentation
bin110000011110…
…001101001001
3212220120020001
4300132031021
511223103013
61132203001
7213001402
oct60361511
925816201
1012706633
117199755
124309461
13282b824
14198a9a9
1511aeddd
hexc1e349

12706633 has 4 divisors (see below), whose sum is σ = 13454100. Its totient is φ = 11959168.

The previous prime is 12706627. The next prime is 12706637. The reversal of 12706633 is 33660721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33660721 = 38387887.

It can be written as a sum of positive squares in 2 ways, for example, as 9566649 + 3139984 = 3093^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 12706633 - 25 = 12706601 is a prime.

It is a super-2 number, since 2×127066332 = 322917044393378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12706637) 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 3 ways as a sum of consecutive naturals, for example, 373708 + ... + 373741.

It is an arithmetic number, because the mean of its divisors is an integer number (3363525).

Almost surely, 212706633 is an apocalyptic number.

It is an amenable number.

12706633 is a deficient number, since it is larger than the sum of its proper divisors (747467).

12706633 is an equidigital number, since it uses as much as digits as its factorization.

12706633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747466.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 12706633 is about 3564.6364471009. The cubic root of 12706633 is about 233.3512664222.

The spelling of 12706633 in words is "twelve million, seven hundred six thousand, six hundred thirty-three".

Divisors: 1 17 747449 12706633