Base | Representation |
---|---|
bin | 10111110101110111… |
… | …01011001111001100 |
3 | 1020001001020101102200 |
4 | 23322323223033030 |
5 | 202203232212223 |
6 | 5514041521500 |
7 | 632123126532 |
oct | 137273531714 |
9 | 36031211380 |
10 | 12799882188 |
11 | 5479221a35 |
12 | 25927a3290 |
13 | 128caa5bb2 |
14 | 895d56152 |
15 | 4edac2a43 |
hex | 2faeeb3cc |
12799882188 has 18 divisors (see below), whose sum is σ = 32355257844. Its totient is φ = 4266627384.
The previous prime is 12799882187. The next prime is 12799882217. The reversal of 12799882188 is 88128899721.
It is a tau number, because it is divible by the number of its divisors (18).
It is not an unprimeable number, because it can be changed into a prime (12799882181) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177776106 + ... + 177776177.
Almost surely, 212799882188 is an apocalyptic number.
12799882188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12799882188 is an abundant number, since it is smaller than the sum of its proper divisors (19555375656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12799882188 is a wasteful number, since it uses less digits than its factorization.
12799882188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 355552293 (or 355552288 counting only the distinct ones).
The product of its digits is 9289728, while the sum is 63.
The spelling of 12799882188 in words is "twelve billion, seven hundred ninety-nine million, eight hundred eighty-two thousand, one hundred eighty-eight".
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