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12137093 = 14981457
BaseRepresentation
bin101110010011…
…001010000101
3211211121221222
4232103022011
511101341333
61112050125
7205110053
oct56231205
924747858
1012137093
11693a861
124093945
13268c517
14187d1d3
1510eb298
hexb93285

12137093 has 4 divisors (see below), whose sum is σ = 12218700. Its totient is φ = 12055488.

The previous prime is 12137087. The next prime is 12137113. The reversal of 12137093 is 39073121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1684804 + 10452289 = 1298^2 + 3233^2 .

It is a cyclic number.

It is not a de Polignac number, because 12137093 - 28 = 12136837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137003) 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, 40580 + ... + 40877.

It is an arithmetic number, because the mean of its divisors is an integer number (3054675).

Almost surely, 212137093 is an apocalyptic number.

It is an amenable number.

12137093 is a deficient number, since it is larger than the sum of its proper divisors (81607).

12137093 is an equidigital number, since it uses as much as digits as its factorization.

12137093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81606.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 12137093 is about 3483.8330901465. The cubic root of 12137093 is about 229.8113954774.

The spelling of 12137093 in words is "twelve million, one hundred thirty-seven thousand, ninety-three".

Divisors: 1 149 81457 12137093