Base | Representation |
---|---|
bin | 111011101110000111… |
… | …0101100001100111111 |
3 | 110021000212220122112101 |
4 | 1313130032230030333 |
5 | 4100123203441200 |
6 | 134530002445531 |
7 | 12160061402620 |
oct | 1673416541477 |
9 | 407025818471 |
10 | 128248890175 |
11 | 4a43217842a |
12 | 20a323638a7 |
13 | c12b171983 |
14 | 62c8abba47 |
15 | 350926626a |
hex | 1ddc3ac33f |
128248890175 has 12 divisors (see below), whose sum is σ = 181746998896. Its totient is φ = 87942096000.
The previous prime is 128248890173. The next prime is 128248890181. The reversal of 128248890175 is 571098842821.
It is not a de Polignac number, because 128248890175 - 21 = 128248890173 is a prime.
It is a super-2 number, since 2×1282488901752 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128248890173) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 366425226 + ... + 366425575.
Almost surely, 2128248890175 is an apocalyptic number.
128248890175 is a deficient number, since it is larger than the sum of its proper divisors (53498108721).
128248890175 is an equidigital number, since it uses as much as digits as its factorization.
128248890175 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 732850818 (or 732850813 counting only the distinct ones).
The product of its (nonzero) digits is 2580480, while the sum is 55.
The spelling of 128248890175 in words is "one hundred twenty-eight billion, two hundred forty-eight million, eight hundred ninety thousand, one hundred seventy-five".
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