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105448565 = 561345733
BaseRepresentation
bin1100100100100…
…00010001110101
321100102100020102
412102100101311
5203443323230
614244043445
72420204135
oct622202165
9240370212
10105448565
1154583082
122b393585
1318b00801
141000cac5
1593ce045
hex6490475

105448565 has 8 divisors (see below), whose sum is σ = 128613048. Its totient is φ = 82975680.

The previous prime is 105448547. The next prime is 105448591. The reversal of 105448565 is 565844501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8898289 + 96550276 = 2983^2 + 9826^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105448565 - 216 = 105383029 is a prime.

It is a super-2 number, since 2×1054485652 = 22238799721118450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172562 + ... + 173171.

It is an arithmetic number, because the mean of its divisors is an integer number (16076631).

Almost surely, 2105448565 is an apocalyptic number.

It is an amenable number.

105448565 is a deficient number, since it is larger than the sum of its proper divisors (23164483).

105448565 is an equidigital number, since it uses as much as digits as its factorization.

105448565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345799.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 105448565 is about 10268.8151702132. The cubic root of 105448565 is about 472.4402507429.

The spelling of 105448565 in words is "one hundred five million, four hundred forty-eight thousand, five hundred sixty-five".

Divisors: 1 5 61 305 345733 1728665 21089713 105448565