Base | Representation |
---|---|
bin | 111110110110010… |
… | …1100000111001011 |
3 | 12102222012112200220 |
4 | 1331230230013023 |
5 | 13304332221034 |
6 | 545132201123 |
7 | 103155034230 |
oct | 17554540713 |
9 | 5388175626 |
10 | 2108867019 |
11 | 992445006 |
12 | 4aa3091a3 |
13 | 277ba3b0c |
14 | 160117787 |
15 | c5219749 |
hex | 7db2c1cb |
2108867019 has 32 divisors (see below), whose sum is σ = 3401448960. Its totient is φ = 1135296000.
The previous prime is 2108866973. The next prime is 2108867023. The reversal of 2108867019 is 9107688012.
It is not a de Polignac number, because 2108867019 - 212 = 2108862923 is a prime.
It is a super-2 number, since 2×21088670192 = 8894640207651892722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2108867029) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57619 + ... + 86819.
It is an arithmetic number, because the mean of its divisors is an integer number (106295280).
Almost surely, 22108867019 is an apocalyptic number.
2108867019 is a deficient number, since it is larger than the sum of its proper divisors (1292581941).
2108867019 is a wasteful number, since it uses less digits than its factorization.
2108867019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29411.
The product of its (nonzero) digits is 48384, while the sum is 42.
The square root of 2108867019 is about 45922.4021475358. The cubic root of 2108867019 is about 1282.3790023744.
The spelling of 2108867019 in words is "two billion, one hundred eight million, eight hundred sixty-seven thousand, nineteen".
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