Base | Representation |
---|---|
bin | 10110100101110010… |
… | …10001000000000001 |
3 | 1011022020021110021112 |
4 | 23102321101000001 |
5 | 144314302134133 |
6 | 5323244333105 |
7 | 606355450166 |
oct | 132271210001 |
9 | 34266243245 |
10 | 12128161793 |
11 | 5164038510 |
12 | 2425844195 |
13 | 11b38886c7 |
14 | 830a6006d |
15 | 4aeb39648 |
hex | 2d2e51001 |
12128161793 has 8 divisors (see below), whose sum is σ = 13241049696. Its totient is φ = 11016995200.
The previous prime is 12128161789. The next prime is 12128161823. The reversal of 12128161793 is 39716182121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12128161793 - 22 = 12128161789 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12128161793.
It is not an unprimeable number, because it can be changed into a prime (12128161723) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415568 + ... + 443793.
It is an arithmetic number, because the mean of its divisors is an integer number (1655131212).
Almost surely, 212128161793 is an apocalyptic number.
It is an amenable number.
12128161793 is a deficient number, since it is larger than the sum of its proper divisors (1112887903).
12128161793 is a wasteful number, since it uses less digits than its factorization.
12128161793 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 860655.
The product of its digits is 36288, while the sum is 41.
The spelling of 12128161793 in words is "twelve billion, one hundred twenty-eight million, one hundred sixty-one thousand, seven hundred ninety-three".
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