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13143305225 = 52718389213
BaseRepresentation
bin11000011110110011…
…01110110000001001
31020220222110002021102
430033121232300021
5203404141231400
610012110351145
7643463152061
oct141731566011
936828402242
1013143305225
115635064826
1226697bb4b5
131315c985ab
148c97d03a1
1551dd0c9d5
hex30f66ec09

13143305225 has 24 divisors (see below), whose sum is σ = 16726554432. Its totient is φ = 10241537600.

The previous prime is 13143305207. The next prime is 13143305237. The reversal of 13143305225 is 52250334131.

It is a happy number.

13143305225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13143305225 - 28 = 13143304969 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 102719 + ... + 191931.

It is an arithmetic number, because the mean of its divisors is an integer number (696939768).

Almost surely, 213143305225 is an apocalyptic number.

It is an amenable number.

13143305225 is a deficient number, since it is larger than the sum of its proper divisors (3583249207).

13143305225 is an equidigital number, since it uses as much as digits as its factorization.

13143305225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89377 (or 89372 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 13143305225 its reverse (52250334131), we get a palindrome (65393639356).

The spelling of 13143305225 in words is "thirteen billion, one hundred forty-three million, three hundred five thousand, two hundred twenty-five".

Divisors: 1 5 25 71 83 355 415 1775 2075 5893 29465 89213 147325 446065 2230325 6334123 7404679 31670615 37023395 158353075 185116975 525732209 2628661045 13143305225