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12993198 = 232165533
BaseRepresentation
bin110001100100…
…001010101110
3220110010022120
4301210022232
511311240243
61142253410
7215304021
oct61441256
926403276
1012993198
117374a89
124427266
1328cc0aa
141a231b8
151219c83
hexc642ae

12993198 has 8 divisors (see below), whose sum is σ = 25986408. Its totient is φ = 4331064.

The previous prime is 12993193. The next prime is 12993221. The reversal of 12993198 is 89139921.

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

12993198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993191) 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, 1082761 + ... + 1082772.

It is an arithmetic number, because the mean of its divisors is an integer number (3248301).

Almost surely, 212993198 is an apocalyptic number.

12993198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12993198 is a wasteful number, since it uses less digits than its factorization.

12993198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165538.

The product of its digits is 34992, while the sum is 42.

The square root of 12993198 is about 3604.6078843613. The cubic root of 12993198 is about 235.0924519289.

The spelling of 12993198 in words is "twelve million, nine hundred ninety-three thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 2165533 4331066 6496599 12993198