Base | Representation |
---|---|
bin | 10110110001110010… |
… | …00010001000000000 |
3 | 1011120020120120210010 |
4 | 23120321002020000 |
5 | 200021030423120 |
6 | 5341240504520 |
7 | 612016531434 |
oct | 133071021000 |
9 | 34506516703 |
10 | 12228764160 |
11 | 5205900568 |
12 | 245347b140 |
13 | 11cb680432 |
14 | 84016a9c4 |
15 | 4b88ac7e0 |
hex | 2d8e42200 |
12228764160 has 160 divisors (see below), whose sum is σ = 39261987072. Its totient is φ = 3246981120.
The previous prime is 12228764129. The next prime is 12228764189. The reversal of 12228764160 is 6146782221.
It is a tau number, because it is divible by the number of its divisors (160).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847577 + ... + 1854183.
Almost surely, 212228764160 is an apocalyptic number.
12228764160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12228764160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19630993536).
12228764160 is an abundant number, since it is smaller than the sum of its proper divisors (27033222912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12228764160 is an equidigital number, since it uses as much as digits as its factorization.
12228764160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6874 (or 6858 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 39.
The spelling of 12228764160 in words is "twelve billion, two hundred twenty-eight million, seven hundred sixty-four thousand, one hundred sixty".
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