Base | Representation |
---|---|
bin | 10001010000101… |
… | …011111110111010 |
3 | 202011220112212021 |
4 | 101100223332322 |
5 | 1043113242010 |
6 | 44422505054 |
7 | 10114310230 |
oct | 2120537672 |
9 | 664815767 |
10 | 289587130 |
11 | 139512108 |
12 | 80b9518a |
13 | 47cc3341 |
14 | 2a662950 |
15 | 1a6538da |
hex | 1142bfba |
289587130 has 32 divisors (see below), whose sum is σ = 605496960. Its totient is φ = 97657920.
The previous prime is 289587107. The next prime is 289587139. The reversal of 289587130 is 31785982.
It is not an unprimeable number, because it can be changed into a prime (289587139) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29640 + ... + 38179.
It is an arithmetic number, because the mean of its divisors is an integer number (18921780).
Almost surely, 2289587130 is an apocalyptic number.
289587130 is an abundant number, since it is smaller than the sum of its proper divisors (315909830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
289587130 is a wasteful number, since it uses less digits than its factorization.
289587130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67894.
The product of its (nonzero) digits is 120960, while the sum is 43.
The square root of 289587130 is about 17017.2597676594. The cubic root of 289587130 is about 661.5963271934.
The spelling of 289587130 in words is "two hundred eighty-nine million, five hundred eighty-seven thousand, one hundred thirty".
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