Base | Representation |
---|---|
bin | 110100110000… |
… | …011110000010 |
3 | 222000122012220 |
4 | 310300132002 |
5 | 12020030033 |
6 | 1212231510 |
7 | 225360516 |
oct | 64603602 |
9 | 28018186 |
10 | 13830018 |
11 | 7896774 |
12 | 476b596 |
13 | 2b32c57 |
14 | 1ba0146 |
15 | 1332bb3 |
hex | d30782 |
13830018 has 8 divisors (see below), whose sum is σ = 27660048. Its totient is φ = 4610004.
The previous prime is 13830007. The next prime is 13830049. The reversal of 13830018 is 81003831.
It is a sphenic number, since it is the product of 3 distinct primes.
13830018 is an admirable number.
It is a self number, because there is not a number n which added to its sum of digits gives 13830018.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152496 + ... + 1152507.
It is an arithmetic number, because the mean of its divisors is an integer number (3457506).
Almost surely, 213830018 is an apocalyptic number.
13830018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13830018 is a wasteful number, since it uses less digits than its factorization.
13830018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2305008.
The product of its (nonzero) digits is 576, while the sum is 24.
The square root of 13830018 is about 3718.8732164461. The cubic root of 13830018 is about 240.0348213365.
Adding to 13830018 its reverse (81003831), we get a palindrome (94833849).
The spelling of 13830018 in words is "thirteen million, eight hundred thirty thousand, eighteen".
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