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12127893 = 34042631
BaseRepresentation
bin101110010000…
…111010010101
3211211011100020
4232100322111
511101043033
61111535353
7205041201
oct56207225
924734306
1012127893
116933958
12408a559
13268828b
141879b01
1510e86b3
hexb90e95

12127893 has 4 divisors (see below), whose sum is σ = 16170528. Its totient is φ = 8085260.

The previous prime is 12127879. The next prime is 12127903. The reversal of 12127893 is 39872121.

12127893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12127893 - 25 = 12127861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021313 + ... + 2021318.

It is an arithmetic number, because the mean of its divisors is an integer number (4042632).

Almost surely, 212127893 is an apocalyptic number.

It is an amenable number.

12127893 is a deficient number, since it is larger than the sum of its proper divisors (4042635).

12127893 is an equidigital number, since it uses as much as digits as its factorization.

12127893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042634.

The product of its digits is 6048, while the sum is 33.

The square root of 12127893 is about 3482.5124551105. The cubic root of 12127893 is about 229.7533145934.

The spelling of 12127893 in words is "twelve million, one hundred twenty-seven thousand, eight hundred ninety-three".

Divisors: 1 3 4042631 12127893