Base | Representation |
---|---|
bin | 100011111010… |
… | …1001011100001 |
3 | 1022102122222020 |
4 | 1013311023201 |
5 | 14310030144 |
6 | 1511332053 |
7 | 316024050 |
oct | 107651341 |
9 | 38378866 |
10 | 18830049 |
11 | a6a1327 |
12 | 6381029 |
13 | 3b93a54 |
14 | 2702397 |
15 | 19be419 |
hex | 11f52e1 |
18830049 has 8 divisors (see below), whose sum is σ = 28693440. Its totient is φ = 10760016.
The previous prime is 18830047. The next prime is 18830057. The reversal of 18830049 is 94003881.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18830049 - 21 = 18830047 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18830041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448314 + ... + 448355.
It is an arithmetic number, because the mean of its divisors is an integer number (3586680).
Almost surely, 218830049 is an apocalyptic number.
It is an amenable number.
18830049 is a deficient number, since it is larger than the sum of its proper divisors (9863391).
18830049 is an equidigital number, since it uses as much as digits as its factorization.
18830049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 896679.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 18830049 is about 4339.3604367464. The cubic root of 18830049 is about 266.0421711269.
The spelling of 18830049 in words is "eighteen million, eight hundred thirty thousand, forty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •