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12082205 = 52416441
BaseRepresentation
bin101110000101…
…110000011101
3211201211200002
4232011300131
511043112310
61110544045
7204461042
oct56056035
924654602
1012082205
1169025a3
124068025
132670545
1418671c9
1510d9da5
hexb85c1d

12082205 has 4 divisors (see below), whose sum is σ = 14498652. Its totient is φ = 9665760.

The previous prime is 12082201. The next prime is 12082211. The reversal of 12082205 is 50228021.

12082205 is digitally balanced in base 2 and base 3, because in such bases 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 3308761 + 8773444 = 1819^2 + 2962^2 .

It is not a de Polignac number, because 12082205 - 22 = 12082201 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 (12082201) 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, 1208216 + ... + 1208225.

It is an arithmetic number, because the mean of its divisors is an integer number (3624663).

Almost surely, 212082205 is an apocalyptic number.

It is an amenable number.

12082205 is a deficient number, since it is larger than the sum of its proper divisors (2416447).

12082205 is an equidigital number, since it uses as much as digits as its factorization.

12082205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416446.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12082205 is about 3475.9466336525. The cubic root of 12082205 is about 229.4644439041.

The spelling of 12082205 in words is "twelve million, eighty-two thousand, two hundred five".

Divisors: 1 5 2416441 12082205