Base | Representation |
---|---|
bin | 100101010001000010… |
… | …1111110100111001100 |
3 | 21122120100110201012101 |
4 | 1022202011332213030 |
5 | 2302344343400000 |
6 | 100433104444444 |
7 | 5532122214502 |
oct | 1124205764714 |
9 | 248510421171 |
10 | 80028887500 |
11 | 30a38247751 |
12 | 13615619724 |
13 | 771510a603 |
14 | 3c32938672 |
15 | 2135cc7e6a |
hex | 12a217e9cc |
80028887500 has 36 divisors (see below), whose sum is σ = 175052014704. Its totient is φ = 32011550000.
The previous prime is 80028887473. The next prime is 80028887513. The reversal of 80028887500 is 578882008.
It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3188656 + ... + 3213655.
It is an arithmetic number, because the mean of its divisors is an integer number (4862555964).
Almost surely, 280028887500 is an apocalyptic number.
It is an amenable number.
80028887500 is an abundant number, since it is smaller than the sum of its proper divisors (95023127204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80028887500 is an equidigital number, since it uses as much as digits as its factorization.
80028887500 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6402340 (or 6402318 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 46.
It can be divided in two parts, 800288 and 87500, that added together give a palindrome (887788).
The spelling of 80028887500 in words is "eighty billion, twenty-eight million, eight hundred eighty-seven thousand, five hundred".
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