Base | Representation |
---|---|
bin | 1010011110010… |
… | …10111110101000 |
3 | 20010022220122220 |
4 | 11033022332220 |
5 | 134443110313 |
6 | 12415114040 |
7 | 2114552646 |
oct | 517127650 |
9 | 203286586 |
10 | 87863208 |
11 | 45661a24 |
12 | 25512920 |
13 | 15284484 |
14 | b952196 |
15 | 7aa8823 |
hex | 53cafa8 |
87863208 has 32 divisors (see below), whose sum is σ = 232580160. Its totient is φ = 27564800.
The previous prime is 87863189. The next prime is 87863221. The reversal of 87863208 is 80236878.
It is a self number, because there is not a number n which added to its sum of digits gives 87863208.
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, 107268 + ... + 108083.
It is an arithmetic number, because the mean of its divisors is an integer number (7268130).
Almost surely, 287863208 is an apocalyptic number.
It is an amenable number.
87863208 is an abundant number, since it is smaller than the sum of its proper divisors (144716952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87863208 is a wasteful number, since it uses less digits than its factorization.
87863208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 215377 (or 215373 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 42.
The square root of 87863208 is about 9373.5376459478. The cubic root of 87863208 is about 444.5654268606.
The spelling of 87863208 in words is "eighty-seven million, eight hundred sixty-three thousand, two hundred eight".
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