Base | Representation |
---|---|
bin | 1010011010110… |
… | …11110000101100 |
3 | 20002110202202202 |
4 | 11031123300230 |
5 | 134334021120 |
6 | 12401241032 |
7 | 2110644554 |
oct | 515336054 |
9 | 202422682 |
10 | 87407660 |
11 | 4538073a |
12 | 25333178 |
13 | 15155012 |
14 | b874164 |
15 | 7a18875 |
hex | 535bc2c |
87407660 has 12 divisors (see below), whose sum is σ = 183556128. Its totient is φ = 34963056.
The previous prime is 87407629. The next prime is 87407689. The reversal of 87407660 is 6670478.
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, 2185172 + ... + 2185211.
It is an arithmetic number, because the mean of its divisors is an integer number (15296344).
Almost surely, 287407660 is an apocalyptic number.
It is an amenable number.
87407660 is an abundant number, since it is smaller than the sum of its proper divisors (96148468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87407660 is a wasteful number, since it uses less digits than its factorization.
87407660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4370392 (or 4370390 counting only the distinct ones).
The product of its (nonzero) digits is 56448, while the sum is 38.
The square root of 87407660 is about 9349.2063834317. The cubic root of 87407660 is about 443.7957762735.
The spelling of 87407660 in words is "eighty-seven million, four hundred seven thousand, six hundred sixty".
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