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4890505105 = 5978101021
BaseRepresentation
bin1001000110111111…
…10010111110010001
3110121211100101210201
410203133302332101
540003432130410
62125140255201
7232122415243
oct44337627621
913554311721
104890505105
11208a620962
12b459a1501
135cc272405
1434571c093
151d952883a
hex1237f2f91

4890505105 has 4 divisors (see below), whose sum is σ = 5868606132. Its totient is φ = 3912404080.

The previous prime is 4890505097. The next prime is 4890505127. The reversal of 4890505105 is 5015050984.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3541559121 + 1348945984 = 59511^2 + 36728^2 .

It is not a de Polignac number, because 4890505105 - 23 = 4890505097 is a prime.

It is a super-2 number, since 2×48905051052 = 47834080364062122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489050506 + ... + 489050515.

It is an arithmetic number, because the mean of its divisors is an integer number (1467151533).

Almost surely, 24890505105 is an apocalyptic number.

It is an amenable number.

4890505105 is a deficient number, since it is larger than the sum of its proper divisors (978101027).

4890505105 is an equidigital number, since it uses as much as digits as its factorization.

4890505105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978101026.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 4890505105 is about 69932.1464349551. The cubic root of 4890505105 is about 1697.4014631301.

The spelling of 4890505105 in words is "four billion, eight hundred ninety million, five hundred five thousand, one hundred five".

Divisors: 1 5 978101021 4890505105