Base | Representation |
---|---|
bin | 111011110111101000… |
… | …0110101011000111011 |
3 | 110021212010210020121010 |
4 | 1313233100311120323 |
5 | 4101301431003240 |
6 | 135021411045003 |
7 | 12201016555203 |
oct | 1675720653073 |
9 | 407763706533 |
10 | 128568219195 |
11 | 4a586454009 |
12 | 20b012a0763 |
13 | c17c379660 |
14 | 6319283403 |
15 | 35272e2280 |
hex | 1def43563b |
128568219195 has 64 divisors (see below), whose sum is σ = 227704869504. Its totient is φ = 61534494720.
The previous prime is 128568219161. The next prime is 128568219209. The reversal of 128568219195 is 591912865821.
It is not a de Polignac number, because 128568219195 - 28 = 128568218939 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9813069 + ... + 9826161.
It is an arithmetic number, because the mean of its divisors is an integer number (3557888586).
Almost surely, 2128568219195 is an apocalyptic number.
128568219195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
128568219195 is a deficient number, since it is larger than the sum of its proper divisors (99136650309).
128568219195 is a wasteful number, since it uses less digits than its factorization.
128568219195 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14512.
The product of its digits is 3110400, while the sum is 57.
The spelling of 128568219195 in words is "one hundred twenty-eight billion, five hundred sixty-eight million, two hundred nineteen thousand, one hundred ninety-five".
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