Base | Representation |
---|---|
bin | 10010101111110110… |
… | …001111101101101010 |
3 | 1220221220100010210212 |
4 | 102233312033231222 |
5 | 312211301231442 |
6 | 13125253541122 |
7 | 1311562021244 |
oct | 225766175552 |
9 | 56856303725 |
10 | 20130102122 |
11 | 859aa10739 |
12 | 3a996447a2 |
13 | 1b8a62aa40 |
14 | d8d6b1094 |
15 | 7cc3b9a82 |
hex | 4afd8fb6a |
20130102122 has 16 divisors (see below), whose sum is σ = 32853097032. Its totient is φ = 9195033600.
The previous prime is 20130102119. The next prime is 20130102143. The reversal of 20130102122 is 22120103102.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 16964802001 + 3165300121 = 130249^2 + 56261^2 .
It is a super-2 number, since 2×201301021222 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20130102097 and 20130102106.
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, 3988379 + ... + 3993422.
Almost surely, 220130102122 is an apocalyptic number.
20130102122 is a deficient number, since it is larger than the sum of its proper divisors (12722994910).
20130102122 is a wasteful number, since it uses less digits than its factorization.
20130102122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7981913.
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 20130102122 its reverse (22120103102), we get a palindrome (42250205224).
The spelling of 20130102122 in words is "twenty billion, one hundred thirty million, one hundred two thousand, one hundred twenty-two".
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