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2112144195 = 35720115659
BaseRepresentation
bin111110111100100…
…1100001101000011
312110012101001010210
41331321030031003
513311202103240
6545330325203
7103224633540
oct17571141503
95405331123
102112144195
11994283217
124ab429803
13278780685
1416072bbc7
15c5665780
hex7de4c343

2112144195 has 16 divisors (see below), whose sum is σ = 3862206720. Its totient is φ = 965551584.

The previous prime is 2112144193. The next prime is 2112144227. The reversal of 2112144195 is 5914412112.

It is not a de Polignac number, because 2112144195 - 21 = 2112144193 is a prime.

It is a super-2 number, since 2×21121441952 = 8922306200944396050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112144193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10057725 + ... + 10057934.

It is an arithmetic number, because the mean of its divisors is an integer number (241387920).

Almost surely, 22112144195 is an apocalyptic number.

2112144195 is a deficient number, since it is larger than the sum of its proper divisors (1750062525).

2112144195 is a wasteful number, since it uses less digits than its factorization.

2112144195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20115674.

The product of its digits is 2880, while the sum is 30.

The square root of 2112144195 is about 45958.0699660027. The cubic root of 2112144195 is about 1283.0429302235.

The spelling of 2112144195 in words is "two billion, one hundred twelve million, one hundred forty-four thousand, one hundred ninety-five".

Divisors: 1 3 5 7 15 21 35 105 20115659 60346977 100578295 140809613 301734885 422428839 704048065 2112144195