Base | Representation |
---|---|
bin | 10000110010110101… |
… | …110010111011111010 |
3 | 1201112201221210101221 |
4 | 100302311302323322 |
5 | 243412401113000 |
6 | 12141214102254 |
7 | 1205604354646 |
oct | 206265627372 |
9 | 51481853357 |
10 | 18032832250 |
11 | 7714077854 |
12 | 35b31aa98a |
13 | 1914c87754 |
14 | c30d35c26 |
15 | 7081e161a |
hex | 432d72efa |
18032832250 has 32 divisors (see below), whose sum is σ = 34261336512. Its totient is φ = 7105467600.
The previous prime is 18032832217. The next prime is 18032832253. The reversal of 18032832250 is 5223823081.
It is not an unprimeable number, because it can be changed into a prime (18032832253) 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, 521544 + ... + 555043.
It is an arithmetic number, because the mean of its divisors is an integer number (1070666766).
Almost surely, 218032832250 is an apocalyptic number.
18032832250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18032832250 is a deficient number, since it is larger than the sum of its proper divisors (16228504262).
18032832250 is a wasteful number, since it uses less digits than its factorization.
18032832250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1076671 (or 1076661 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 34.
The spelling of 18032832250 in words is "eighteen billion, thirty-two million, eight hundred thirty-two thousand, two hundred fifty".
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