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2102322105 = 325133593713
BaseRepresentation
bin111110101001110…
…1110001110111001
312102111220000202200
41331103232032321
513301143301410
6544340020413
7103045304652
oct17523561671
95374800680
102102322105
11989784794
124a8091709
13276721aa0
1415d2d2529
15c48753c0
hex7d4ee3b9

2102322105 has 24 divisors (see below), whose sum is σ = 3924335688. Its totient is φ = 1034989056.

The previous prime is 2102322083. The next prime is 2102322121. The reversal of 2102322105 is 5012232012.

It can be written as a sum of positive squares in 4 ways, for example, as 12278016 + 2090044089 = 3504^2 + 45717^2 .

It is not a de Polignac number, because 2102322105 - 28 = 2102321849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1796272 + ... + 1797441.

It is an arithmetic number, because the mean of its divisors is an integer number (163513987).

Almost surely, 22102322105 is an apocalyptic number.

It is an amenable number.

2102322105 is a deficient number, since it is larger than the sum of its proper divisors (1822013583).

2102322105 is a wasteful number, since it uses less digits than its factorization.

2102322105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593737 (or 3593734 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2102322105 is about 45851.0861921503. The cubic root of 2102322105 is about 1281.0509973536.

Adding to 2102322105 its reverse (5012232012), we get a palindrome (7114554117).

The spelling of 2102322105 in words is "two billion, one hundred two million, three hundred twenty-two thousand, one hundred five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 3593713 10781139 17968565 32343417 46718269 53905695 140154807 161717085 233591345 420464421 700774035 2102322105