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10831000133 = 51473210421
BaseRepresentation
bin10100001011001001…
…11111001001000101
31000221211102211000002
422011210333021011
5134140214001013
64550425531045
7532254660602
oct120544771105
930854384002
1010831000133
1146588a9788
122123343a85
131037c05625
1474a67b6a9
15435d0a358
hex28593f245

10831000133 has 4 divisors (see below), whose sum is σ = 10831262028. Its totient is φ = 10830738240.

The previous prime is 10831000111. The next prime is 10831000157. The reversal of 10831000133 is 33100013801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33100013801 = 83398795347.

It can be written as a sum of positive squares in 2 ways, for example, as 5372450209 + 5458549924 = 73297^2 + 73882^2 .

It is a cyclic number.

It is not a de Polignac number, because 10831000133 - 28 = 10830999877 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 (10831050133) 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, 53738 + ... + 156683.

It is an arithmetic number, because the mean of its divisors is an integer number (2707815507).

Almost surely, 210831000133 is an apocalyptic number.

It is an amenable number.

10831000133 is a deficient number, since it is larger than the sum of its proper divisors (261895).

10831000133 is an equidigital number, since it uses as much as digits as its factorization.

10831000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261894.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10831000133 its reverse (33100013801), we get a palindrome (43931013934).

The spelling of 10831000133 in words is "ten billion, eight hundred thirty-one million, one hundred thirty-three", and thus it is an aban number.

Divisors: 1 51473 210421 10831000133