Base | Representation |
---|---|
bin | 111110101111001… |
… | …1110011111011011 |
3 | 12102201012020212000 |
4 | 1331132132133123 |
5 | 13302404004321 |
6 | 544520252043 |
7 | 103111255635 |
oct | 17536363733 |
9 | 5381166760 |
10 | 2105141211 |
11 | 99032a828 |
12 | 4a9011023 |
13 | 27719acb4 |
14 | 15d827a55 |
15 | c4c30826 |
hex | 7d79e7db |
2105141211 has 16 divisors (see below), whose sum is σ = 3219333120. Its totient is φ = 1358155080.
The previous prime is 2105141189. The next prime is 2105141221. The reversal of 2105141211 is 1121415012.
It is not a de Polignac number, because 2105141211 - 25 = 2105141179 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2105141221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256715 + ... + 1258388.
It is an arithmetic number, because the mean of its divisors is an integer number (201208320).
Almost surely, 22105141211 is an apocalyptic number.
2105141211 is a deficient number, since it is larger than the sum of its proper divisors (1114191909).
2105141211 is a wasteful number, since it uses less digits than its factorization.
2105141211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2515143 (or 2515137 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 18.
The square root of 2105141211 is about 45881.8178693914. The cubic root of 2105141211 is about 1281.6233494690.
Adding to 2105141211 its reverse (1121415012), we get a palindrome (3226556223).
The spelling of 2105141211 in words is "two billion, one hundred five million, one hundred forty-one thousand, two hundred eleven".
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