Base | Representation |
---|---|
bin | 1000000111110011… |
… | …0111011000111110 |
3 | 12121221110110121220 |
4 | 2001330313120332 |
5 | 13431113411012 |
6 | 1000201334210 |
7 | 105012350661 |
oct | 20174673076 |
9 | 5557413556 |
10 | 2180216382 |
11 | a19747923 |
12 | 50a197366 |
13 | 2898c5886 |
14 | 1697ab6d8 |
15 | cb61008c |
hex | 81f3763e |
2180216382 has 8 divisors (see below), whose sum is σ = 4360432776. Its totient is φ = 726738792.
The previous prime is 2180216377. The next prime is 2180216387. The reversal of 2180216382 is 2836120812.
It is an interprime number because it is at equal distance from previous prime (2180216377) and next prime (2180216387).
It is a sphenic number, since it is the product of 3 distinct primes.
2180216382 is an admirable number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2180216387) 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, 181684693 + ... + 181684704.
It is an arithmetic number, because the mean of its divisors is an integer number (545054097).
Almost surely, 22180216382 is an apocalyptic number.
2180216382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180216382 is a wasteful number, since it uses less digits than its factorization.
2180216382 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 363369402.
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 2180216382 is about 46692.7872588476. The cubic root of 2180216382 is about 1296.6811560410.
The spelling of 2180216382 in words is "two billion, one hundred eighty million, two hundred sixteen thousand, three hundred eighty-two".
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