Base | Representation |
---|---|
bin | 111110101001010… |
… | …0100100000011010 |
3 | 12102111022200112010 |
4 | 1331102210200122 |
5 | 13301104120442 |
6 | 544325330350 |
7 | 103042606356 |
oct | 17522444032 |
9 | 5374280463 |
10 | 2102020122 |
11 | 989598914 |
12 | 4a7b669b6 |
13 | 2766474b7 |
14 | 15d254466 |
15 | c4815b9c |
hex | 7d4a481a |
2102020122 has 16 divisors (see below), whose sum is σ = 4425305760. Its totient is φ = 663795792.
The previous prime is 2102020073. The next prime is 2102020147. The reversal of 2102020122 is 2210202012.
It is a junction number, because it is equal to n+sod(n) for n = 2102020098 and 2102020107.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9219273 + ... + 9219500.
It is an arithmetic number, because the mean of its divisors is an integer number (276581610).
Almost surely, 22102020122 is an apocalyptic number.
2102020122 is an abundant number, since it is smaller than the sum of its proper divisors (2323285638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102020122 is a wasteful number, since it uses less digits than its factorization.
2102020122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18438797.
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 2102020122 is about 45847.7929894123. The cubic root of 2102020122 is about 1280.9896565872.
Adding to 2102020122 its reverse (2210202012), we get a palindrome (4312222134).
It can be divided in two parts, 210202012 and 2, that multiplied together give a palindrome (420404024).
The spelling of 2102020122 in words is "two billion, one hundred two million, twenty thousand, one hundred twenty-two".
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