Base | Representation |
---|---|
bin | 111110110011100… |
… | …1001100100010101 |
3 | 12102212110202122012 |
4 | 1331213021210111 |
5 | 13303444233210 |
6 | 545041114005 |
7 | 103136505326 |
oct | 17547114425 |
9 | 5385422565 |
10 | 2107414805 |
11 | 991642a31 |
12 | 4a9928905 |
13 | 2777b5b12 |
14 | 15dc5a44d |
15 | c502e305 |
hex | 7d9c9915 |
2107414805 has 12 divisors (see below), whose sum is σ = 2572508172. Its totient is φ = 1657343040.
The previous prime is 2107414787. The next prime is 2107414807. The reversal of 2107414805 is 5084147012.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 730188484 + 1377226321 = 27022^2 + 37111^2 .
It is not a de Polignac number, because 2107414805 - 28 = 2107414549 is a prime.
It is a super-3 number, since 3×21074148053 (a number of 29 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2107414807) 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 11 ways as a sum of consecutive naturals, for example, 43136 + ... + 77945.
It is an arithmetic number, because the mean of its divisors is an integer number (214375681).
Almost surely, 22107414805 is an apocalyptic number.
It is an amenable number.
2107414805 is a deficient number, since it is larger than the sum of its proper divisors (465093367).
2107414805 is an equidigital number, since it uses as much as digits as its factorization.
2107414805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121204 (or 121145 counting only the distinct ones).
The product of its (nonzero) digits is 8960, while the sum is 32.
The square root of 2107414805 is about 45906.5878170007. The cubic root of 2107414805 is about 1282.0845762902.
The spelling of 2107414805 in words is "two billion, one hundred seven million, four hundred fourteen thousand, eight hundred five".
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