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12993446 = 27982237
BaseRepresentation
bin110001100100…
…001110100110
3220110010122202
4301210032212
511311242241
61142254502
7215304524
oct61441646
926403582
1012993446
117375194
124427432
1328cc23b
141a23314
151219d9b
hexc643a6

12993446 has 8 divisors (see below), whose sum is σ = 19737120. Its totient is φ = 6414408.

The previous prime is 12993419. The next prime is 12993451. The reversal of 12993446 is 64439921.

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

It is a congruent number.

It is an unprimeable number.

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, 40961 + ... + 41276.

It is an arithmetic number, because the mean of its divisors is an integer number (2467140).

Almost surely, 212993446 is an apocalyptic number.

12993446 is a deficient number, since it is larger than the sum of its proper divisors (6743674).

12993446 is an equidigital number, since it uses as much as digits as its factorization.

12993446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82318.

The product of its digits is 46656, while the sum is 38.

The square root of 12993446 is about 3604.6422846102. The cubic root of 12993446 is about 235.0939476489.

The spelling of 12993446 in words is "twelve million, nine hundred ninety-three thousand, four hundred forty-six".

Divisors: 1 2 79 158 82237 164474 6496723 12993446