Base | Representation |
---|---|
bin | 100100000100010… |
… | …1000011000101010 |
3 | 10010100020122122120 |
4 | 1020020220120222 |
5 | 4434304101442 |
6 | 320031132110 |
7 | 41663501244 |
oct | 11010503052 |
9 | 3110218576 |
10 | 1210222122 |
11 | 57115887a |
12 | 299374036 |
13 | 163963185 |
14 | b6a31094 |
15 | 713a94ec |
hex | 4822862a |
1210222122 has 32 divisors (see below), whose sum is σ = 2520906624. Its totient is φ = 386971200.
The previous prime is 1210222121. The next prime is 1210222151. The reversal of 1210222122 is 2212220121.
It is not an unprimeable number, because it can be changed into a prime (1210222121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22629 + ... + 54152.
It is an arithmetic number, because the mean of its divisors is an integer number (78778332).
Almost surely, 21210222122 is an apocalyptic number.
1210222122 is an abundant number, since it is smaller than the sum of its proper divisors (1310684502).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210222122 is a wasteful number, since it uses less digits than its factorization.
1210222122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76894.
The product of its (nonzero) digits is 64, while the sum is 15.
The square root of 1210222122 is about 34788.2468946051. The cubic root of 1210222122 is about 1065.6674376531.
Adding to 1210222122 its reverse (2212220121), we get a palindrome (3422442243).
The spelling of 1210222122 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, one hundred twenty-two".
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