Base | Representation |
---|---|
bin | 1010011111000… |
… | …10100100000000 |
3 | 20010111211011200 |
4 | 11033202210000 |
5 | 140004203213 |
6 | 12421141200 |
7 | 2115434406 |
oct | 517424400 |
9 | 203454150 |
10 | 87959808 |
11 | 45718562 |
12 | 2555a800 |
13 | 152b9431 |
14 | b979476 |
15 | 7ac7273 |
hex | 53e2900 |
87959808 has 54 divisors (see below), whose sum is σ = 253616454. Its totient is φ = 29319168.
The previous prime is 87959779. The next prime is 87959849. The reversal of 87959808 is 80895978.
It can be written as a sum of positive squares in only one way, i.e., 52533504 + 35426304 = 7248^2 + 5952^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16785 + ... + 21392.
It is an arithmetic number, because the mean of its divisors is an integer number (4696601).
Almost surely, 287959808 is an apocalyptic number.
It is an amenable number.
87959808 is an abundant number, since it is smaller than the sum of its proper divisors (165656646).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87959808 is a wasteful number, since it uses less digits than its factorization.
87959808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38199 (or 38182 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 54.
The square root of 87959808 is about 9378.6890341881. The cubic root of 87959808 is about 444.7282909778.
The spelling of 87959808 in words is "eighty-seven million, nine hundred fifty-nine thousand, eight hundred eight".
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