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10217105 = 52043421
BaseRepresentation
bin100110111110…
…011010010001
3201020002020022
4212332122101
510103421410
61002553225
7152562323
oct46763221
921202208
1010217105
115849298
123508815
132169632
1414dd613
15d6c455
hex9be691

10217105 has 4 divisors (see below), whose sum is σ = 12260532. Its totient is φ = 8173680.

The previous prime is 10217087. The next prime is 10217131. The reversal of 10217105 is 50171201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50171201 = 273118371.

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 9042049 = 1084^2 + 3007^2 .

It is not a de Polignac number, because 10217105 - 28 = 10216849 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021706 + ... + 1021715.

It is an arithmetic number, because the mean of its divisors is an integer number (3065133).

Almost surely, 210217105 is an apocalyptic number.

It is an amenable number.

10217105 is a deficient number, since it is larger than the sum of its proper divisors (2043427).

10217105 is an equidigital number, since it uses as much as digits as its factorization.

10217105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043426.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 10217105 is about 3196.4206544196. The cubic root of 10217105 is about 216.9914484798.

Adding to 10217105 its reverse (50171201), we get a palindrome (60388306).

The spelling of 10217105 in words is "ten million, two hundred seventeen thousand, one hundred five".

Divisors: 1 5 2043421 10217105