Base | Representation |
---|---|
bin | 11000100110111000… |
… | …00101001001101000 |
3 | 1021002200212212100212 |
4 | 30103130011021220 |
5 | 204024010430440 |
6 | 10022530120252 |
7 | 645244621541 |
oct | 142334051150 |
9 | 37080785325 |
10 | 13211030120 |
11 | 566a311512 |
12 | 2688420088 |
13 | 132701b6b2 |
14 | 8d47bd4c8 |
15 | 524c39465 |
hex | 313705268 |
13211030120 has 32 divisors (see below), whose sum is σ = 29826294120. Its totient is φ = 5266371840.
The previous prime is 13211030101. The next prime is 13211030143. The reversal of 13211030120 is 2103011231.
It can be written as a sum of positive squares in 4 ways, for example, as 11403249796 + 1807780324 = 106786^2 + 42518^2 .
It is a junction number, because it is equal to n+sod(n) for n = 13211030095 and 13211030104.
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, 551891 + ... + 575330.
Almost surely, 213211030120 is an apocalyptic number.
13211030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13211030120 is an abundant number, since it is smaller than the sum of its proper divisors (16615264000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13211030120 is a wasteful number, since it uses less digits than its factorization.
13211030120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1127525 (or 1127521 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 13211030120 its reverse (2103011231), we get a palindrome (15314041351).
The spelling of 13211030120 in words is "thirteen billion, two hundred eleven million, thirty thousand, one hundred twenty".
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