Base | Representation |
---|---|
bin | 1010010111111… |
… | …11001000111010 |
3 | 20001202111100201 |
4 | 11023333020322 |
5 | 134234401112 |
6 | 12345152414 |
7 | 2104504525 |
oct | 513771072 |
9 | 201674321 |
10 | 87028282 |
11 | 45141700 |
12 | 2518b70a |
13 | 15051433 |
14 | b7b5bbc |
15 | 7991257 |
hex | 52ff23a |
87028282 has 12 divisors (see below), whose sum is σ = 143489178. Its totient is φ = 39558200.
The previous prime is 87028241. The next prime is 87028283. The reversal of 87028282 is 28282078.
It can be written as a sum of positive squares in only one way, i.e., 75325041 + 11703241 = 8679^2 + 3421^2 .
It is not an unprimeable number, because it can be changed into a prime (87028283) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179569 + ... + 180052.
Almost surely, 287028282 is an apocalyptic number.
87028282 is a deficient number, since it is larger than the sum of its proper divisors (56460896).
87028282 is a wasteful number, since it uses less digits than its factorization.
87028282 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 359645 (or 359634 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 37.
The square root of 87028282 is about 9328.8950042328. The cubic root of 87028282 is about 443.1527718673.
The spelling of 87028282 in words is "eighty-seven million, twenty-eight thousand, two hundred eighty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •