Base | Representation |
---|---|
bin | 100011111101… |
… | …0001000101001 |
3 | 1022110200210221 |
4 | 1013322020221 |
5 | 14311202340 |
6 | 1512010041 |
7 | 316140163 |
oct | 107721051 |
9 | 38420727 |
10 | 18850345 |
11 | a7055a8 |
12 | 6390921 |
13 | 3ba0067 |
14 | 2709933 |
15 | 19c544a |
hex | 11fa229 |
18850345 has 8 divisors (see below), whose sum is σ = 22659264. Its totient is φ = 15054384.
The previous prime is 18850343. The next prime is 18850357. The reversal of 18850345 is 54305881.
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 18850345 - 21 = 18850343 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 18850345.
It is not an unprimeable number, because it can be changed into a prime (18850343) 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, 322 + ... + 6148.
It is an arithmetic number, because the mean of its divisors is an integer number (2832408).
Almost surely, 218850345 is an apocalyptic number.
It is an amenable number.
18850345 is a deficient number, since it is larger than the sum of its proper divisors (3808919).
18850345 is an equidigital number, since it uses as much as digits as its factorization.
18850345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6479.
The product of its (nonzero) digits is 19200, while the sum is 34.
The square root of 18850345 is about 4341.6984003959. The cubic root of 18850345 is about 266.1377214727.
The spelling of 18850345 in words is "eighteen million, eight hundred fifty thousand, three hundred forty-five".
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