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12025705 = 52405141
BaseRepresentation
bin101101110111…
…111101101001
3211121222011111
4231313331221
511034310310
61105430321
7204134236
oct55677551
924558144
1012025705
1168740aa
12403b3a1
132650903
14185078d
1510c828a
hexb77f69

12025705 has 4 divisors (see below), whose sum is σ = 14430852. Its totient is φ = 9620560.

The previous prime is 12025697. The next prime is 12025733. The reversal of 12025705 is 50752021.

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 1547536 + 10478169 = 1244^2 + 3237^2 .

It is not a de Polignac number, because 12025705 - 23 = 12025697 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202566 + ... + 1202575.

It is an arithmetic number, because the mean of its divisors is an integer number (3607713).

Almost surely, 212025705 is an apocalyptic number.

It is an amenable number.

12025705 is a deficient number, since it is larger than the sum of its proper divisors (2405147).

12025705 is an equidigital number, since it uses as much as digits as its factorization.

12025705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405146.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 12025705 is about 3467.8098275425. The cubic root of 12025705 is about 229.1062034795.

Adding to 12025705 its reverse (50752021), we get a palindrome (62777726).

The spelling of 12025705 in words is "twelve million, twenty-five thousand, seven hundred five".

Divisors: 1 5 2405141 12025705