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12006609 = 329138007
BaseRepresentation
bin101101110011…
…010011010001
3211120222222020
4231303103101
511033202414
61105202053
7204024456
oct55632321
924528866
1012006609
11686081a
124030329
132645004
14184782d
1510c27a9
hexb734d1

12006609 has 8 divisors (see below), whose sum is σ = 16560960. Its totient is φ = 7728336.

The previous prime is 12006587. The next prime is 12006619. The reversal of 12006609 is 90660021.

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

It is not a de Polignac number, because 12006609 - 212 = 12002513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12006619) 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, 68917 + ... + 69090.

It is an arithmetic number, because the mean of its divisors is an integer number (2070120).

Almost surely, 212006609 is an apocalyptic number.

It is an amenable number.

12006609 is a deficient number, since it is larger than the sum of its proper divisors (4554351).

12006609 is a wasteful number, since it uses less digits than its factorization.

12006609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138039.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12006609 is about 3465.0554108124. The cubic root of 12006609 is about 228.9848708883.

The spelling of 12006609 in words is "twelve million, six thousand, six hundred nine".

Divisors: 1 3 29 87 138007 414021 4002203 12006609