Base | Representation |
---|---|
bin | 1010011011011… |
… | …01011011000100 |
3 | 20002121110000011 |
4 | 11031231123010 |
5 | 134343330004 |
6 | 12403000004 |
7 | 2111365513 |
oct | 515553304 |
9 | 202543004 |
10 | 87480004 |
11 | 45420027 |
12 | 25369004 |
13 | 1517bc21 |
14 | b89267a |
15 | 7a30004 |
hex | 536d6c4 |
87480004 has 12 divisors (see below), whose sum is σ = 153344044. Its totient is φ = 43667424.
The previous prime is 87479999. The next prime is 87480007. The reversal of 87480004 is 40008478.
It can be written as a sum of positive squares in 2 ways, for example, as 21902400 + 65577604 = 4680^2 + 8098^2 .
It is not an unprimeable number, because it can be changed into a prime (87480007) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15387 + ... + 20290.
Almost surely, 287480004 is an apocalyptic number.
It is an amenable number.
87480004 is a deficient number, since it is larger than the sum of its proper divisors (65864040).
87480004 is a wasteful number, since it uses less digits than its factorization.
87480004 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36294 (or 36292 counting only the distinct ones).
The product of its (nonzero) digits is 7168, while the sum is 31.
The square root of 87480004 is about 9353.0745747054. The cubic root of 87480004 is about 443.9181801455.
The spelling of 87480004 in words is "eighty-seven million, four hundred eighty thousand, four".
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