Search a number
-
+
12443141 = 13989519
BaseRepresentation
bin101111011101…
…111000000101
3212102011210002
4233131320011
511141140031
61122411045
7210523244
oct57357005
925364702
1012443141
117029797
124200a85
132768909
14191c95b
15115bccb
hexbdde05

12443141 has 4 divisors (see below), whose sum is σ = 12532800. Its totient is φ = 12353484.

The previous prime is 12443129. The next prime is 12443147. The reversal of 12443141 is 14134421.

12443141 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 not a de Polignac number, because 12443141 - 210 = 12442117 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 (12443147) 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, 44621 + ... + 44898.

It is an arithmetic number, because the mean of its divisors is an integer number (3133200).

Almost surely, 212443141 is an apocalyptic number.

It is an amenable number.

12443141 is a deficient number, since it is larger than the sum of its proper divisors (89659).

12443141 is an equidigital number, since it uses as much as digits as its factorization.

12443141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89658.

The product of its digits is 384, while the sum is 20.

The square root of 12443141 is about 3527.4836640302. The cubic root of 12443141 is about 231.7270186487.

Adding to 12443141 its reverse (14134421), we get a palindrome (26577562).

The spelling of 12443141 in words is "twelve million, four hundred forty-three thousand, one hundred forty-one".

Divisors: 1 139 89519 12443141