Base | Representation |
---|---|
bin | 10000010000100100… |
… | …00011001010011100 |
3 | 211112022221020121010 |
4 | 20020102003022130 |
5 | 120334043240433 |
6 | 4002054135220 |
7 | 426211201005 |
oct | 101022031234 |
9 | 24468836533 |
10 | 8728883868 |
11 | 377a255711 |
12 | 1837351510 |
13 | a91556453 |
14 | 5cb4001ac |
15 | 3614c5e63 |
hex | 20848329c |
8728883868 has 12 divisors (see below), whose sum is σ = 20367395720. Its totient is φ = 2909627952.
The previous prime is 8728883843. The next prime is 8728883873. The reversal of 8728883868 is 8683888278.
It is a tau number, because it is divible by the number of its divisors (12).
It is a junction number, because it is equal to n+sod(n) for n = 8728883799 and 8728883808.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363703483 + ... + 363703506.
Almost surely, 28728883868 is an apocalyptic number.
It is an amenable number.
8728883868 is an abundant number, since it is smaller than the sum of its proper divisors (11638511852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8728883868 is a wasteful number, since it uses less digits than its factorization.
8728883868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 727406996 (or 727406994 counting only the distinct ones).
The product of its digits is 66060288, while the sum is 66.
The square root of 8728883868 is about 93428.4960170076. The cubic root of 8728883868 is about 2058.9836841157.
The spelling of 8728883868 in words is "eight billion, seven hundred twenty-eight million, eight hundred eighty-three thousand, eight hundred sixty-eight".
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