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105354565 = 521070913
BaseRepresentation
bin1100100011110…
…01010101000101
321100020120021221
412101321111011
5203432321230
614242040341
72416333111
oct621712505
9240216257
10105354565
1154519498
122b3490b1
1318a99aa4
14ddc6741
1593b127a
hex6479545

105354565 has 4 divisors (see below), whose sum is σ = 126425484. Its totient is φ = 84283648.

The previous prime is 105354553. The next prime is 105354569. The reversal of 105354565 is 565453501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565453501 = 929608669.

It can be written as a sum of positive squares in 2 ways, for example, as 58033924 + 47320641 = 7618^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 105354565 - 27 = 105354437 is a prime.

It is a super-2 number, since 2×1053545652 = 22199168732678450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105354565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105354569) 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, 10535452 + ... + 10535461.

It is an arithmetic number, because the mean of its divisors is an integer number (31606371).

Almost surely, 2105354565 is an apocalyptic number.

It is an amenable number.

105354565 is a deficient number, since it is larger than the sum of its proper divisors (21070919).

105354565 is an equidigital number, since it uses as much as digits as its factorization.

105354565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070918.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 105354565 is about 10264.2371854902. The cubic root of 105354565 is about 472.2998265590.

The spelling of 105354565 in words is "one hundred five million, three hundred fifty-four thousand, five hundred sixty-five".

Divisors: 1 5 21070913 105354565