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12028441 = 37325093
BaseRepresentation
bin101101111000…
…101000011001
3211122002220211
4231320220121
511034402231
61105451121
7204145225
oct55705031
924562824
1012028441
116876167
124040aa1
132651c29
141851785
1510c8eb1
hexb78a19

12028441 has 4 divisors (see below), whose sum is σ = 12353572. Its totient is φ = 11703312.

The previous prime is 12028421. The next prime is 12028447. The reversal of 12028441 is 14482021.

12028441 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.

It can be written as a sum of positive squares in 2 ways, for example, as 9455625 + 2572816 = 3075^2 + 1604^2 .

It is a cyclic number.

It is not a de Polignac number, because 12028441 - 25 = 12028409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12028447) 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, 162510 + ... + 162583.

It is an arithmetic number, because the mean of its divisors is an integer number (3088393).

Almost surely, 212028441 is an apocalyptic number.

It is an amenable number.

12028441 is a deficient number, since it is larger than the sum of its proper divisors (325131).

12028441 is an equidigital number, since it uses as much as digits as its factorization.

12028441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325130.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 12028441 is about 3468.2042904074. The cubic root of 12028441 is about 229.1235770151.

It can be divided in two parts, 120 and 28441, that added together give a 4-th power (28561 = 134).

The spelling of 12028441 in words is "twelve million, twenty-eight thousand, four hundred forty-one".

Divisors: 1 37 325093 12028441