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105328807 = 163646189
BaseRepresentation
bin1100100011100…
…11000010100111
321100012020221221
412101303002213
5203431010212
614241321211
72416165033
oct621630247
9240166857
10105328807
1154501101
122b336207
1318a8b14c
14ddbb1c3
1593a8807
hex64730a7

105328807 has 4 divisors (see below), whose sum is σ = 105975160. Its totient is φ = 104682456.

The previous prime is 105328789. The next prime is 105328823. The reversal of 105328807 is 708823501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105328807 - 223 = 96940199 is a prime.

It is a super-2 number, since 2×1053288072 = 22188315168086498, 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 (105328507) 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, 322932 + ... + 323257.

It is an arithmetic number, because the mean of its divisors is an integer number (26493790).

Almost surely, 2105328807 is an apocalyptic number.

105328807 is a deficient number, since it is larger than the sum of its proper divisors (646353).

105328807 is an equidigital number, since it uses as much as digits as its factorization.

105328807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646352.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 105328807 is about 10262.9823638161. The cubic root of 105328807 is about 472.2613327658.

The spelling of 105328807 in words is "one hundred five million, three hundred twenty-eight thousand, eight hundred seven".

Divisors: 1 163 646189 105328807