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12193331 = 14938167
BaseRepresentation
bin101110100000…
…111000110011
3211221111002212
4232200320303
511110141311
61113202335
7205433033
oct56407063
924844085
1012193331
116979037
1241003ab
1326abcb7
1418958c3
15110cc8b
hexba0e33

12193331 has 4 divisors (see below), whose sum is σ = 12202992. Its totient is φ = 12183672.

The previous prime is 12193309. The next prime is 12193333. The reversal of 12193331 is 13339121.

12193331 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 brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12193331 is a prime.

It is a super-2 number, since 2×121933312 = 297354641751122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12193297 and 12193306.

It is not an unprimeable number, because it can be changed into a prime (12193333) 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, 2591 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (3050748).

It is a self-describing number.

Almost surely, 212193331 is an apocalyptic number.

12193331 is a deficient number, since it is larger than the sum of its proper divisors (9661).

12193331 is an equidigital number, since it uses as much as digits as its factorization.

12193331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660.

The product of its digits is 486, while the sum is 23.

The square root of 12193331 is about 3491.8950442417. The cubic root of 12193331 is about 230.1657972792.

The spelling of 12193331 in words is "twelve million, one hundred ninety-three thousand, three hundred thirty-one".

Divisors: 1 1493 8167 12193331