Base | Representation |
---|---|
bin | 100101100100100110… |
… | …0000101101010101000 |
3 | 21201021001200112221010 |
4 | 1023021030011222220 |
5 | 2310220302110210 |
6 | 101022135143520 |
7 | 5554305330021 |
oct | 1131114055250 |
9 | 251231615833 |
10 | 80684800680 |
11 | 31244514a60 |
12 | 13779214ba0 |
13 | 77bac81c13 |
14 | 3c95ab7c48 |
15 | 217368c920 |
hex | 12c9305aa8 |
80684800680 has 64 divisors (see below), whose sum is σ = 264059352000. Its totient is φ = 19559951360.
The previous prime is 80684800649. The next prime is 80684800697. The reversal of 80684800680 is 8600848608.
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, 30561105 + ... + 30563744.
It is an arithmetic number, because the mean of its divisors is an integer number (4125927375).
Almost surely, 280684800680 is an apocalyptic number.
It is an amenable number.
80684800680 is an abundant number, since it is smaller than the sum of its proper divisors (183374551320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80684800680 is a wasteful number, since it uses less digits than its factorization.
80684800680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61124874 (or 61124870 counting only the distinct ones).
The product of its (nonzero) digits is 589824, while the sum is 48.
The spelling of 80684800680 in words is "eighty billion, six hundred eighty-four million, eight hundred thousand, six hundred eighty".
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