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12111793 = 31390703
BaseRepresentation
bin101110001100…
…111110110001
3211210100020221
4232030332301
511100034133
61111333041
7204643231
oct56147661
924710227
1012111793
116922851
124081181
132680b55
141873cc1
1510e3a2d
hexb8cfb1

12111793 has 4 divisors (see below), whose sum is σ = 12502528. Its totient is φ = 11721060.

The previous prime is 12111787. The next prime is 12111811. The reversal of 12111793 is 39711121.

12111793 is digitally balanced in base 3, 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 a de Polignac number, because none of the positive numbers 2k-12111793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111713) 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, 195321 + ... + 195382.

It is an arithmetic number, because the mean of its divisors is an integer number (3125632).

Almost surely, 212111793 is an apocalyptic number.

It is an amenable number.

12111793 is a deficient number, since it is larger than the sum of its proper divisors (390735).

12111793 is an equidigital number, since it uses as much as digits as its factorization.

12111793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390734.

The product of its digits is 378, while the sum is 25.

The square root of 12111793 is about 3480.2001379231. The cubic root of 12111793 is about 229.6516023279.

The spelling of 12111793 in words is "twelve million, one hundred eleven thousand, seven hundred ninety-three".

Divisors: 1 31 390703 12111793