Base | Representation |
---|---|
bin | 100100000001… |
… | …0000111100010 |
3 | 1022112100122221 |
4 | 1020002013202 |
5 | 14313224132 |
6 | 1512421254 |
7 | 316334413 |
oct | 110020742 |
9 | 38470587 |
10 | 18883042 |
11 | a728122 |
12 | 63a782a |
13 | 3bb1bc9 |
14 | 271780a |
15 | 19cee97 |
hex | 12021e2 |
18883042 has 8 divisors (see below), whose sum is σ = 29015532. Its totient is φ = 9211200.
The previous prime is 18883013. The next prime is 18883043. The reversal of 18883042 is 24038881.
It can be written as a sum of positive squares in 2 ways, for example, as 18241441 + 641601 = 4271^2 + 801^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 18882989 and 18883007.
It is not an unprimeable number, because it can be changed into a prime (18883043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115059 + ... + 115222.
Almost surely, 218883042 is an apocalyptic number.
18883042 is a deficient number, since it is larger than the sum of its proper divisors (10132490).
18883042 is a wasteful number, since it uses less digits than its factorization.
18883042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 230324.
The product of its (nonzero) digits is 12288, while the sum is 34.
The square root of 18883042 is about 4345.4622308795. The cubic root of 18883042 is about 266.2915096147.
The spelling of 18883042 in words is "eighteen million, eight hundred eighty-three thousand, forty-two".
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