Base | Representation |
---|---|
bin | 1010010111111… |
… | …11001000110011 |
3 | 20001202111100110 |
4 | 11023333020303 |
5 | 134234401100 |
6 | 12345152403 |
7 | 2104504515 |
oct | 513771063 |
9 | 201674313 |
10 | 87028275 |
11 | 451416a4 |
12 | 2518b703 |
13 | 15051429 |
14 | b7b5bb5 |
15 | 7991250 |
hex | 52ff233 |
87028275 has 24 divisors (see below), whose sum is σ = 148852080. Its totient is φ = 44813440.
The previous prime is 87028241. The next prime is 87028283. The reversal of 87028275 is 57282078.
It is not a de Polignac number, because 87028275 - 26 = 87028211 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17832 + ... + 22181.
It is an arithmetic number, because the mean of its divisors is an integer number (6202170).
Almost surely, 287028275 is an apocalyptic number.
87028275 is a deficient number, since it is larger than the sum of its proper divisors (61823805).
87028275 is a wasteful number, since it uses less digits than its factorization.
87028275 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40055 (or 40050 counting only the distinct ones).
The product of its (nonzero) digits is 62720, while the sum is 39.
The square root of 87028275 is about 9328.8946290544. The cubic root of 87028275 is about 443.1527599859.
The spelling of 87028275 in words is "eighty-seven million, twenty-eight thousand, two hundred seventy-five".
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