Base | Representation |
---|---|
bin | 1010010111111… |
… | …10110111110100 |
3 | 20001202102212012 |
4 | 11023332313310 |
5 | 134234332223 |
6 | 12345143352 |
7 | 2104501403 |
oct | 513766764 |
9 | 201672765 |
10 | 87027188 |
11 | 451408a6 |
12 | 2518ab58 |
13 | 15050aa1 |
14 | b7b563a |
15 | 7990c78 |
hex | 52fedf4 |
87027188 has 12 divisors (see below), whose sum is σ = 152383812. Its totient is φ = 43488960.
The previous prime is 87027181. The next prime is 87027191. The reversal of 87027188 is 88172078.
It can be written as a sum of positive squares in 2 ways, for example, as 23697424 + 63329764 = 4868^2 + 7958^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87027181) 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, 3458 + ... + 13638.
It is an arithmetic number, because the mean of its divisors is an integer number (12698651).
Almost surely, 287027188 is an apocalyptic number.
It is an amenable number.
87027188 is a deficient number, since it is larger than the sum of its proper divisors (65356624).
87027188 is a wasteful number, since it uses less digits than its factorization.
87027188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12322 (or 12320 counting only the distinct ones).
The product of its (nonzero) digits is 50176, while the sum is 41.
The square root of 87027188 is about 9328.8363690227. The cubic root of 87027188 is about 443.1509149569.
The spelling of 87027188 in words is "eighty-seven million, twenty-seven thousand, one hundred eighty-eight".
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