Base | Representation |
---|---|
bin | 11001101000010… |
… | …10011100101010 |
3 | 112222120011202100 |
4 | 30310022130222 |
5 | 420020011444 |
6 | 33200114230 |
7 | 5220322464 |
oct | 1464123452 |
9 | 488504670 |
10 | 215000874 |
11 | 1003a9380 |
12 | 60005976 |
13 | 3570a16a |
14 | 207a9134 |
15 | 13d1de69 |
hex | cd0a72a |
215000874 has 24 divisors (see below), whose sum is σ = 508184352. Its totient is φ = 65151720.
The previous prime is 215000873. The next prime is 215000879. The reversal of 215000874 is 478000512.
It is not an unprimeable number, because it can be changed into a prime (215000873) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542734 + ... + 543129.
It is an arithmetic number, because the mean of its divisors is an integer number (21174348).
Almost surely, 2215000874 is an apocalyptic number.
215000874 is an abundant number, since it is smaller than the sum of its proper divisors (293183478).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215000874 is a wasteful number, since it uses less digits than its factorization.
215000874 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1085882 (or 1085879 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 27.
The square root of 215000874 is about 14662.9081017375. The cubic root of 215000874 is about 599.0734532551.
The spelling of 215000874 in words is "two hundred fifteen million, eight hundred seventy-four", and thus it is an aban number.
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