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2132110105 = 5426422021
BaseRepresentation
bin111111100010101…
…0110101100011001
312111120221102012221
41333011112230121
513331310010410
6551322304041
7103556431306
oct17705265431
95446842187
102132110105
119a457a974
124b6058021
1327c951418
141632480ad
15c72ab4da
hex7f156b19

2132110105 has 4 divisors (see below), whose sum is σ = 2558532132. Its totient is φ = 1705688080.

The previous prime is 2132110093. The next prime is 2132110109. The reversal of 2132110105 is 5010112312.

2132110105 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 1349901081 + 782209024 = 36741^2 + 27968^2 .

It is a de Polignac number, because none of the positive numbers 2k-2132110105 is a prime.

It is a super-2 number, since 2×21321101052 = 9091786999686222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132110109) 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, 213211006 + ... + 213211015.

It is an arithmetic number, because the mean of its divisors is an integer number (639633033).

Almost surely, 22132110105 is an apocalyptic number.

It is an amenable number.

2132110105 is a deficient number, since it is larger than the sum of its proper divisors (426422027).

2132110105 is an equidigital number, since it uses as much as digits as its factorization.

2132110105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426422026.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 2132110105 is about 46174.7778013062. Note that the first 3 decimals coincide. The cubic root of 2132110105 is about 1287.0730878556.

Adding to 2132110105 its reverse (5010112312), we get a palindrome (7142222417).

The spelling of 2132110105 in words is "two billion, one hundred thirty-two million, one hundred ten thousand, one hundred five".

Divisors: 1 5 426422021 2132110105