Base | Representation |
---|---|
bin | 101000101111011100… |
… | …1001100001000000000 |
3 | 22100211102111102111122 |
4 | 1101132321030020000 |
5 | 2413140244133341 |
6 | 104105404131412 |
7 | 6215055411356 |
oct | 1213671141000 |
9 | 270742442448 |
10 | 87491396096 |
11 | 34117680925 |
12 | 14b58836b68 |
13 | 833419c880 |
14 | 433da8b7d6 |
15 | 242100194b |
hex | 145ee4c200 |
87491396096 has 40 divisors (see below), whose sum is σ = 188258994924. Its totient is φ = 40380641280.
The previous prime is 87491396059. The next prime is 87491396107. The reversal of 87491396096 is 69069319478.
It can be written as a sum of positive squares in 2 ways, for example, as 81521670400 + 5969725696 = 285520^2 + 77264^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565715 + ... + 6579026.
Almost surely, 287491396096 is an apocalyptic number.
It is an amenable number.
87491396096 is an abundant number, since it is smaller than the sum of its proper divisors (100767598828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87491396096 is a wasteful number, since it uses less digits than its factorization.
87491396096 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13144772 (or 13144756 counting only the distinct ones).
The product of its (nonzero) digits is 17635968, while the sum is 62.
The spelling of 87491396096 in words is "eighty-seven billion, four hundred ninety-one million, three hundred ninety-six thousand, ninety-six".
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