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10518317 = 67315629
BaseRepresentation
bin101000000111…
…111100101101
3201210101102022
4220013330231
510143041232
61013235525
7155255435
oct50077455
921711368
1010518317
115a34627
123632ba5
132243774
14157b2c5
15dcb812
hexa07f2d

10518317 has 4 divisors (see below), whose sum is σ = 10534620. Its totient is φ = 10502016.

The previous prime is 10518311. The next prime is 10518349. The reversal of 10518317 is 71381501.

10518317 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 71381501 = 611311677.

It can be written as a sum of positive squares in 2 ways, for example, as 8128201 + 2390116 = 2851^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 10518317 - 210 = 10517293 is a prime.

It is a super-2 number, since 2×105183172 = 221269985024978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10518311) by changing a digit.

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, 7142 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (2633655).

Almost surely, 210518317 is an apocalyptic number.

It is an amenable number.

10518317 is a deficient number, since it is larger than the sum of its proper divisors (16303).

10518317 is an equidigital number, since it uses as much as digits as its factorization.

10518317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16302.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 10518317 is about 3243.1954921034. The cubic root of 10518317 is about 219.1032158042.

Adding to 10518317 its reverse (71381501), we get a palindrome (81899818).

The spelling of 10518317 in words is "ten million, five hundred eighteen thousand, three hundred seventeen".

Divisors: 1 673 15629 10518317