Base | Representation |
---|---|
bin | 110000001011001… |
… | …110101100010000 |
3 | 2002022212100201221 |
4 | 300023032230100 |
5 | 3123403001003 |
6 | 212111334424 |
7 | 26013004240 |
oct | 6013165420 |
9 | 2068770657 |
10 | 808250128 |
11 | 385266314 |
12 | 1a6821414 |
13 | cb5b111a |
14 | 794b5b20 |
15 | 4ae567bd |
hex | 302ceb10 |
808250128 has 40 divisors (see below), whose sum is σ = 1805563008. Its totient is φ = 343322112.
The previous prime is 808250123. The next prime is 808250129. The reversal of 808250128 is 821052808.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 808250093 and 808250102.
It is not an unprimeable number, because it can be changed into a prime (808250123) 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, 19276 + ... + 44587.
Almost surely, 2808250128 is an apocalyptic number.
It is an amenable number.
808250128 is an abundant number, since it is smaller than the sum of its proper divisors (997312880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
808250128 is a wasteful number, since it uses less digits than its factorization.
808250128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63991 (or 63985 counting only the distinct ones).
The product of its (nonzero) digits is 10240, while the sum is 34.
The square root of 808250128 is about 28429.7402028228. The cubic root of 808250128 is about 931.4980012552.
The spelling of 808250128 in words is "eight hundred eight million, two hundred fifty thousand, one hundred twenty-eight".
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