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105244313 = 172161153
BaseRepresentation
bin1100100010111…
…10011010011001
321100000222001112
412101132122121
5203420304223
614235430105
72415363506
oct621363231
9240028045
10105244313
1154453679
122b2b5335
1318a5b855
14dd984ad
15938d778
hex645e699

105244313 has 4 divisors (see below), whose sum is σ = 105307188. Its totient is φ = 105181440.

The previous prime is 105244291. The next prime is 105244357. The reversal of 105244313 is 313442501.

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 95023504 + 10220809 = 9748^2 + 3197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105244313 is a prime.

It is a super-2 number, since 2×1052443132 = 22152730837683938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105244813) 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, 28856 + ... + 32297.

It is an arithmetic number, because the mean of its divisors is an integer number (26326797).

Almost surely, 2105244313 is an apocalyptic number.

It is an amenable number.

105244313 is a deficient number, since it is larger than the sum of its proper divisors (62875).

105244313 is an equidigital number, since it uses as much as digits as its factorization.

105244313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62874.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 105244313 is about 10258.8650931767. The cubic root of 105244313 is about 472.1350174523.

Adding to 105244313 its reverse (313442501), we get a palindrome (418686814).

The spelling of 105244313 in words is "one hundred five million, two hundred forty-four thousand, three hundred thirteen".

Divisors: 1 1721 61153 105244313