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12025205 = 517236151
BaseRepresentation
bin101101110111…
…110101110101
3211121221110222
4231313311311
511034301310
61105424125
7204132623
oct55676565
924557428
1012025205
116873795
12403b045
13265060a
141850513
1510c8055
hexb77d75

12025205 has 16 divisors (see below), whose sum is σ = 15945984. Its totient is φ = 8659200.

The previous prime is 12025183. The next prime is 12025229. The reversal of 12025205 is 50252021.

It is not a de Polignac number, because 12025205 - 28 = 12024949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1121 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (996624).

Almost surely, 212025205 is an apocalyptic number.

It is an amenable number.

12025205 is a deficient number, since it is larger than the sum of its proper divisors (3920779).

12025205 is a wasteful number, since it uses less digits than its factorization.

12025205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 12025205 is about 3467.7377351813. The cubic root of 12025205 is about 229.1030282065.

Adding to 12025205 its reverse (50252021), we get a palindrome (62277226).

The spelling of 12025205 in words is "twelve million, twenty-five thousand, two hundred five".

Divisors: 1 5 17 23 85 115 391 1955 6151 30755 104567 141473 522835 707365 2405041 12025205