Base | Representation |
---|---|
bin | 10001100110111010110… |
… | …100110000011011101100 |
3 | 11021200021101111010100012 |
4 | 101212322310300123230 |
5 | 124311110132432340 |
6 | 2323513044152352 |
7 | 153264300005414 |
oct | 21467264603354 |
9 | 4250241433305 |
10 | 1210020202220 |
11 | 42719194a355 |
12 | 1766153986b8 |
13 | 8a14852964b |
14 | 427cb229644 |
15 | 2171e739565 |
hex | 119bad306ec |
1210020202220 has 24 divisors (see below), whose sum is σ = 2541063090384. Its totient is φ = 484004144576.
The previous prime is 1210020202169. The next prime is 1210020202231. The reversal of 1210020202220 is 222020200121.
It is a junction number, because it is equal to n+sod(n) for n = 1210020202195 and 1210020202204.
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, 4695239 + ... + 4946241.
It is an arithmetic number, because the mean of its divisors is an integer number (105877628766).
Almost surely, 21210020202220 is an apocalyptic number.
1210020202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1210020202220 is an abundant number, since it is smaller than the sum of its proper divisors (1331042888164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210020202220 is a wasteful number, since it uses less digits than its factorization.
1210020202220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 492049 (or 492047 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 1210020202220 its reverse (222020200121), we get a palindrome (1432040402341).
The spelling of 1210020202220 in words is "one trillion, two hundred ten billion, twenty million, two hundred two thousand, two hundred twenty".
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