Base | Representation |
---|---|
bin | 1010011000000… |
… | …01101110011010 |
3 | 20001210000220000 |
4 | 11030001232122 |
5 | 134240220444 |
6 | 12345313430 |
7 | 2104550436 |
oct | 514015632 |
9 | 201700800 |
10 | 87038874 |
11 | 4514965a |
12 | 25195876 |
13 | 150561c0 |
14 | b7b99c6 |
15 | 7994469 |
hex | 5301b9a |
87038874 has 80 divisors (see below), whose sum is σ = 215903688. Its totient is φ = 26034048.
The previous prime is 87038851. The next prime is 87038899. The reversal of 87038874 is 47883078.
It can be written as a sum of positive squares in 4 ways, for example, as 55398249 + 31640625 = 7443^2 + 5625^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 77364 + ... + 78480.
Almost surely, 287038874 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87038874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107951844).
87038874 is an abundant number, since it is smaller than the sum of its proper divisors (128864814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87038874 is a wasteful number, since it uses less digits than its factorization.
87038874 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1181 (or 1172 counting only the distinct ones).
The product of its (nonzero) digits is 301056, while the sum is 45.
The square root of 87038874 is about 9329.4626854927. The cubic root of 87038874 is about 443.1707494858.
The spelling of 87038874 in words is "eighty-seven million, thirty-eight thousand, eight hundred seventy-four".
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