Base | Representation |
---|---|
bin | 10100001100011010… |
… | …011110000111100000 |
3 | 2001222010120201101101 |
4 | 110030122132013200 |
5 | 323401333232201 |
6 | 13543332044144 |
7 | 1365220220221 |
oct | 241432360740 |
9 | 61863521341 |
10 | 21683102176 |
11 | 921760065a |
12 | 4251763654 |
13 | 20772b8a98 |
14 | 1099a4d248 |
15 | 86d8d2d01 |
hex | 50c69e1e0 |
21683102176 has 48 divisors (see below), whose sum is σ = 45289359360. Its totient is φ = 10190033280.
The previous prime is 21683102159. The next prime is 21683102201. The reversal of 21683102176 is 67120138612.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63190 + ... + 217621.
It is an arithmetic number, because the mean of its divisors is an integer number (943528320).
Almost surely, 221683102176 is an apocalyptic number.
It is an amenable number.
21683102176 is an abundant number, since it is smaller than the sum of its proper divisors (23606257184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21683102176 is a wasteful number, since it uses less digits than its factorization.
21683102176 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 280967 (or 280959 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 37.
It can be divided in two parts, 2168310 and 2176, that added together give a triangular number (2170486 = T2083).
The spelling of 21683102176 in words is "twenty-one billion, six hundred eighty-three million, one hundred two thousand, one hundred seventy-six".
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