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2103201705 = 351112746677
BaseRepresentation
bin111110101011100…
…0100111110101001
312102120112201100110
41331113010332221
513301404423310
6544410524533
7103055630253
oct17527047651
95376481313
102103201705
1198a225630
124a8436749
1327696c267
1415d480cd3
15c499ad20
hex7d5c4fa9

2103201705 has 16 divisors (see below), whose sum is σ = 3671043264. Its totient is φ = 1019734080.

The previous prime is 2103201701. The next prime is 2103201707. The reversal of 2103201705 is 5071023012.

It is not a de Polignac number, because 2103201705 - 22 = 2103201701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103201701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6373174 + ... + 6373503.

It is an arithmetic number, because the mean of its divisors is an integer number (229440204).

Almost surely, 22103201705 is an apocalyptic number.

It is an amenable number.

2103201705 is a deficient number, since it is larger than the sum of its proper divisors (1567841559).

2103201705 is a wasteful number, since it uses less digits than its factorization.

2103201705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12746696.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 2103201705 is about 45860.6771101343. The cubic root of 2103201705 is about 1281.2296340050.

Adding to 2103201705 its reverse (5071023012), we get a palindrome (7174224717).

The spelling of 2103201705 in words is "two billion, one hundred three million, two hundred one thousand, seven hundred five".

Divisors: 1 3 5 11 15 33 55 165 12746677 38240031 63733385 140213447 191200155 420640341 701067235 2103201705