Base | Representation |
---|---|
bin | 111100100000001… |
… | …0011010011101101 |
3 | 12020111000220010220 |
4 | 1321000103103231 |
5 | 13124202402341 |
6 | 533240321553 |
7 | 101210516451 |
oct | 17100232355 |
9 | 5214026126 |
10 | 2030122221 |
11 | 951a50966 |
12 | 487a732b9 |
13 | 264792b6a |
14 | 15389a661 |
15 | bd362a66 |
hex | 790134ed |
2030122221 has 4 divisors (see below), whose sum is σ = 2706829632. Its totient is φ = 1353414812.
The previous prime is 2030122153. The next prime is 2030122261. The reversal of 2030122221 is 1222210302.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2030122221 - 211 = 2030120173 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2030122221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2030122261) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338353701 + ... + 338353706.
It is an arithmetic number, because the mean of its divisors is an integer number (676707408).
Almost surely, 22030122221 is an apocalyptic number.
It is an amenable number.
2030122221 is a deficient number, since it is larger than the sum of its proper divisors (676707411).
2030122221 is an equidigital number, since it uses as much as digits as its factorization.
2030122221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 676707410.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 2030122221 is about 45056.8776215130. The cubic root of 2030122221 is about 1266.2148278151.
Adding to 2030122221 its reverse (1222210302), we get a palindrome (3252332523).
It can be divided in two parts, 2030 and 122221, that added together give a triangular number (124251 = T498).
The spelling of 2030122221 in words is "two billion, thirty million, one hundred twenty-two thousand, two hundred twenty-one".
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