Base | Representation |
---|---|
bin | 100100001001… |
… | …0111101101101 |
3 | 1022122212022121 |
4 | 1020102331231 |
5 | 14322431140 |
6 | 1514112541 |
7 | 320042530 |
oct | 110227555 |
9 | 38585277 |
10 | 18952045 |
11 | a774a52 |
12 | 641b751 |
13 | 3c07438 |
14 | 2734a17 |
15 | 19e564a |
hex | 1212f6d |
18952045 has 32 divisors (see below), whose sum is σ = 27288576. Its totient is φ = 12364800.
The previous prime is 18952033. The next prime is 18952049. The reversal of 18952045 is 54025981.
It is not a de Polignac number, because 18952045 - 213 = 18943853 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 18952045.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18952049) 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 31 ways as a sum of consecutive naturals, for example, 67305 + ... + 67585.
It is an arithmetic number, because the mean of its divisors is an integer number (852768).
Almost surely, 218952045 is an apocalyptic number.
It is an amenable number.
18952045 is a deficient number, since it is larger than the sum of its proper divisors (8336531).
18952045 is a wasteful number, since it uses less digits than its factorization.
18952045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 381.
The product of its (nonzero) digits is 14400, while the sum is 34.
The square root of 18952045 is about 4353.3946524523. The cubic root of 18952045 is about 266.6154788902.
The spelling of 18952045 in words is "eighteen million, nine hundred fifty-two thousand, forty-five".
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