Base | Representation |
---|---|
bin | 100011101001… |
… | …0111111001100 |
3 | 1022011112212002 |
4 | 1013102333030 |
5 | 14241034441 |
6 | 1504331432 |
7 | 314601533 |
oct | 107227714 |
9 | 38145762 |
10 | 18689996 |
11 | a606086 |
12 | 6313b78 |
13 | 3b45090 |
14 | 26a731a |
15 | 1992b9b |
hex | 11d2fcc |
18689996 has 24 divisors (see below), whose sum is σ = 37079280. Its totient is φ = 8171712.
The previous prime is 18689989. The next prime is 18690019. The reversal of 18689996 is 69998681.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8471 + ... + 10446.
It is an arithmetic number, because the mean of its divisors is an integer number (1544970).
Almost surely, 218689996 is an apocalyptic number.
It is an amenable number.
18689996 is a deficient number, since it is larger than the sum of its proper divisors (18389284).
18689996 is a wasteful number, since it uses less digits than its factorization.
18689996 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18953 (or 18951 counting only the distinct ones).
The product of its digits is 1679616, while the sum is 56.
The square root of 18689996 is about 4323.1928016224. The cubic root of 18689996 is about 265.3809449392.
The spelling of 18689996 in words is "eighteen million, six hundred eighty-nine thousand, nine hundred ninety-six".
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