Base | Representation |
---|---|
bin | 111110101111101… |
… | …1010100011100011 |
3 | 12102201122202100000 |
4 | 1331133122203203 |
5 | 13302434342420 |
6 | 544525431043 |
7 | 103113332130 |
oct | 17537324343 |
9 | 5381582300 |
10 | 2105387235 |
11 | 990488656 |
12 | 4a910b483 |
13 | 277255c83 |
14 | 15d88d587 |
15 | c4c7d690 |
hex | 7d7da8e3 |
2105387235 has 48 divisors (see below), whose sum is σ = 4325158656. Its totient is φ = 962458848.
The previous prime is 2105387197. The next prime is 2105387237. The reversal of 2105387235 is 5327835012.
It is a happy number.
2105387235 is a `hidden beast` number, since 21 + 0 + 538 + 72 + 35 = 666.
It is not a de Polignac number, because 2105387235 - 26 = 2105387171 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2105387235.
It is not an unprimeable number, because it can be changed into a prime (2105387237) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115269 + ... + 132278.
It is an arithmetic number, because the mean of its divisors is an integer number (90107472).
Almost surely, 22105387235 is an apocalyptic number.
2105387235 is an abundant number, since it is smaller than the sum of its proper divisors (2219771421).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2105387235 is an equidigital number, since it uses as much as digits as its factorization.
2105387235 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 247574 (or 247562 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 36.
The square root of 2105387235 is about 45884.4988530985. The cubic root of 2105387235 is about 1281.6732745158.
The spelling of 2105387235 in words is "two billion, one hundred five million, three hundred eighty-seven thousand, two hundred thirty-five".
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