Base | Representation |
---|---|
bin | 100100000110… |
… | …1010110010001 |
3 | 1022121200202121 |
4 | 1020031112101 |
5 | 14321212131 |
6 | 1513414241 |
7 | 316615465 |
oct | 110152621 |
9 | 38550677 |
10 | 18929041 |
11 | a75973a |
12 | 640a381 |
13 | 3bc9b21 |
14 | 272a4a5 |
15 | 19dd911 |
hex | 120d591 |
18929041 has 8 divisors (see below), whose sum is σ = 20342880. Its totient is φ = 17548608.
The previous prime is 18929033. The next prime is 18929051. The reversal of 18929041 is 14092981.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 18929041 - 23 = 18929033 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18928988 and 18929006.
It is not an unprimeable number, because it can be changed into a prime (18929051) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7171 + ... + 9448.
It is an arithmetic number, because the mean of its divisors is an integer number (2542860).
Almost surely, 218929041 is an apocalyptic number.
It is an amenable number.
18929041 is a deficient number, since it is larger than the sum of its proper divisors (1413839).
18929041 is a wasteful number, since it uses less digits than its factorization.
18929041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16703.
The product of its (nonzero) digits is 5184, while the sum is 34.
The square root of 18929041 is about 4350.7517741190. The cubic root of 18929041 is about 266.5075625562.
The spelling of 18929041 in words is "eighteen million, nine hundred twenty-nine thousand, forty-one".
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