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105442055 = 5122917159
BaseRepresentation
bin1100100100011…
…10101100000111
321100102000022022
412102032230013
5203443121210
614243553355
72420146145
oct622165407
9240360268
10105442055
11545791a4
122b38b85b
1318aca864
141000a595
1593cc155
hex648eb07

105442055 has 8 divisors (see below), whose sum is σ = 126640800. Its totient is φ = 84280096.

The previous prime is 105442033. The next prime is 105442087. The reversal of 105442055 is 550244501.

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

It is a cyclic number.

It is not a de Polignac number, because 105442055 - 26 = 105441991 is a prime.

It is a super-2 number, since 2×1054420552 = 22236053925246050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2435 + ... + 14724.

It is an arithmetic number, because the mean of its divisors is an integer number (15830100).

Almost surely, 2105442055 is an apocalyptic number.

105442055 is a deficient number, since it is larger than the sum of its proper divisors (21198745).

105442055 is a wasteful number, since it uses less digits than its factorization.

105442055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 105442055 is about 10268.4981862004. The cubic root of 105442055 is about 472.4305283115.

Adding to 105442055 its reverse (550244501), we get a palindrome (655686556).

The spelling of 105442055 in words is "one hundred five million, four hundred forty-two thousand, fifty-five".

Divisors: 1 5 1229 6145 17159 85795 21088411 105442055