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105347105 = 521069421
BaseRepresentation
bin1100100011101…
…11100000100001
321100020012001122
412101313200201
5203432101410
614241542025
72416302263
oct621674041
9240205048
10105347105
1154513926
122b344915
1318a96586
14ddc3b33
1593ade55
hex6477821

105347105 has 4 divisors (see below), whose sum is σ = 126416532. Its totient is φ = 84277680.

The previous prime is 105347101. The next prime is 105347117. The reversal of 105347105 is 501743501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501743501 = 771677643.

It can be written as a sum of positive squares in 2 ways, for example, as 80586529 + 24760576 = 8977^2 + 4976^2 .

It is not a de Polignac number, because 105347105 - 22 = 105347101 is a prime.

It is a super-2 number, since 2×1053471052 = 22196025063762050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105347101) 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, 10534706 + ... + 10534715.

It is an arithmetic number, because the mean of its divisors is an integer number (31604133).

Almost surely, 2105347105 is an apocalyptic number.

It is an amenable number.

105347105 is a deficient number, since it is larger than the sum of its proper divisors (21069427).

105347105 is an equidigital number, since it uses as much as digits as its factorization.

105347105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069426.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 105347105 is about 10263.8737813751. The cubic root of 105347105 is about 472.2886786799.

The spelling of 105347105 in words is "one hundred five million, three hundred forty-seven thousand, one hundred five".

Divisors: 1 5 21069421 105347105