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200131105 = 540026221
BaseRepresentation
bin10111110110111…
…00001000100001
3111221120201021011
423323130020201
5402213143410
631505300521
74650041416
oct1373341041
9457521234
10200131105
11a2a72509
1257034741
1332601b95
141c81810d
151288318a
hexbedc221

200131105 has 4 divisors (see below), whose sum is σ = 240157332. Its totient is φ = 160104880.

The previous prime is 200131093. The next prime is 200131111. The reversal of 200131105 is 501131002.

200131105 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 39551521 + 160579584 = 6289^2 + 12672^2 .

It is not a de Polignac number, because 200131105 - 217 = 200000033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20013106 + ... + 20013115.

It is an arithmetic number, because the mean of its divisors is an integer number (60039333).

Almost surely, 2200131105 is an apocalyptic number.

It is an amenable number.

200131105 is a deficient number, since it is larger than the sum of its proper divisors (40026227).

200131105 is an equidigital number, since it uses as much as digits as its factorization.

200131105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40026226.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 200131105 is about 14146.7701260747. The cubic root of 200131105 is about 584.9313041793.

Adding to 200131105 its reverse (501131002), we get a palindrome (701262107).

The spelling of 200131105 in words is "two hundred million, one hundred thirty-one thousand, one hundred five".

Divisors: 1 5 40026221 200131105