Base | Representation |
---|---|
bin | 101000111101000… |
… | …100010000110010 |
3 | 1202212220010201200 |
4 | 220331010100302 |
5 | 2401344100012 |
6 | 152102512030 |
7 | 23012140623 |
oct | 5075042062 |
9 | 1685803650 |
10 | 687096882 |
11 | 32293706a |
12 | 172135616 |
13 | ac472304 |
14 | 67379a4a |
15 | 404c43dc |
hex | 28f44432 |
687096882 has 24 divisors (see below), whose sum is σ = 1528946796. Its totient is φ = 222842016.
The previous prime is 687096857. The next prime is 687096889. The reversal of 687096882 is 288690786.
It can be written as a sum of positive squares in 2 ways, for example, as 491908041 + 195188841 = 22179^2 + 13971^2 .
It is not an unprimeable number, because it can be changed into a prime (687096889) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515173 + ... + 516504.
Almost surely, 2687096882 is an apocalyptic number.
687096882 is an abundant number, since it is smaller than the sum of its proper divisors (841849914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
687096882 is a wasteful number, since it uses less digits than its factorization.
687096882 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1031722 (or 1031719 counting only the distinct ones).
The product of its (nonzero) digits is 2322432, while the sum is 54.
The square root of 687096882 is about 26212.5329184343. The cubic root of 687096882 is about 882.4145474428.
The spelling of 687096882 in words is "six hundred eighty-seven million, ninety-six thousand, eight hundred eighty-two".
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