Base | Representation |
---|---|
bin | 10110110000110000… |
… | …10111100000011011 |
3 | 1011112122110112022120 |
4 | 23120120113200123 |
5 | 200011332412422 |
6 | 5340333152323 |
7 | 611553665061 |
oct | 133030274033 |
9 | 34478415276 |
10 | 12220200987 |
11 | 5200a91965 |
12 | 245062b6a3 |
13 | 11c9972877 |
14 | 83cd7c031 |
15 | 4b7c6a45c |
hex | 2d861781b |
12220200987 has 16 divisors (see below), whose sum is σ = 17282094720. Its totient is φ = 7659100800.
The previous prime is 12220200977. The next prime is 12220201013. The reversal of 12220200987 is 78900202221.
It is not a de Polignac number, because 12220200987 - 219 = 12219676699 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12220200907) 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, 810814 + ... + 825747.
It is an arithmetic number, because the mean of its divisors is an integer number (1080130920).
Almost surely, 212220200987 is an apocalyptic number.
12220200987 is a deficient number, since it is larger than the sum of its proper divisors (5061893733).
12220200987 is a wasteful number, since it uses less digits than its factorization.
12220200987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1636714.
The product of its (nonzero) digits is 8064, while the sum is 33.
The spelling of 12220200987 in words is "twelve billion, two hundred twenty million, two hundred thousand, nine hundred eighty-seven".
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