Base | Representation |
---|---|
bin | 10111010010111… |
… | …011101110101110 |
3 | 1000020102200121110 |
4 | 113102323232232 |
5 | 1300023323324 |
6 | 102441012450 |
7 | 12454035633 |
oct | 2722735656 |
9 | 1006380543 |
10 | 390839214 |
11 | 190689317 |
12 | aaa84126 |
13 | 62c84a0c |
14 | 39c9c18a |
15 | 244a4329 |
hex | 174bbbae |
390839214 has 32 divisors (see below), whose sum is σ = 850036896. Its totient is φ = 119301120.
The previous prime is 390839203. The next prime is 390839233. The reversal of 390839214 is 412938093.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48007 + ... + 55554.
It is an arithmetic number, because the mean of its divisors is an integer number (26563653).
Almost surely, 2390839214 is an apocalyptic number.
390839214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
390839214 is an abundant number, since it is smaller than the sum of its proper divisors (459197682).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
390839214 is a wasteful number, since it uses less digits than its factorization.
390839214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103620.
The product of its (nonzero) digits is 46656, while the sum is 39.
The square root of 390839214 is about 19769.6538664692. The cubic root of 390839214 is about 731.1380347822.
The spelling of 390839214 in words is "three hundred ninety million, eight hundred thirty-nine thousand, two hundred fourteen".
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