Base | Representation |
---|---|
bin | 11010100111001011… |
… | …111101111010001000 |
3 | 2201202102101222201212 |
4 | 122213023331322020 |
5 | 432010113023013 |
6 | 21043235432252 |
7 | 2031052151150 |
oct | 324713757210 |
9 | 81672358655 |
10 | 28574736008 |
11 | 1113376a105 |
12 | 5655755688 |
13 | 290500c220 |
14 | 155103b760 |
15 | b239436a8 |
hex | 6a72fde88 |
28574736008 has 64 divisors (see below), whose sum is σ = 69820652160. Its totient is φ = 10639328256.
The previous prime is 28574735993. The next prime is 28574736017. The reversal of 28574736008 is 80063747582.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142066 + ... + 1166817.
It is an arithmetic number, because the mean of its divisors is an integer number (1090947690).
Almost surely, 228574736008 is an apocalyptic number.
28574736008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
28574736008 is an abundant number, since it is smaller than the sum of its proper divisors (41245916152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28574736008 is a wasteful number, since it uses less digits than its factorization.
28574736008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2308926 (or 2308922 counting only the distinct ones).
The product of its (nonzero) digits is 2257920, while the sum is 50.
The spelling of 28574736008 in words is "twenty-eight billion, five hundred seventy-four million, seven hundred thirty-six thousand, eight".
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