Base | Representation |
---|---|
bin | 100100000011… |
… | …1011111111010 |
3 | 1022120110220020 |
4 | 1020013133322 |
5 | 14314430312 |
6 | 1513111310 |
7 | 316455600 |
oct | 110073772 |
9 | 38513806 |
10 | 18905082 |
11 | a742739 |
12 | 63b8536 |
13 | 3bbbc51 |
14 | 2721870 |
15 | 19d678c |
hex | 12077fa |
18905082 has 24 divisors (see below), whose sum is σ = 43983936. Its totient is φ = 5401368.
The previous prime is 18905053. The next prime is 18905087. The reversal of 18905082 is 28050981.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (18905087) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31858 + ... + 32445.
It is an arithmetic number, because the mean of its divisors is an integer number (1832664).
Almost surely, 218905082 is an apocalyptic number.
18905082 is an abundant number, since it is smaller than the sum of its proper divisors (25078854).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18905082 is a wasteful number, since it uses less digits than its factorization.
18905082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64322 (or 64315 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 33.
The square root of 18905082 is about 4347.9974701005. The cubic root of 18905082 is about 266.3950731353.
The spelling of 18905082 in words is "eighteen million, nine hundred five thousand, eighty-two".
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