Base | Representation |
---|---|
bin | 10110101100111… |
… | …110110001100011 |
3 | 222112201020010212 |
4 | 112230332301203 |
5 | 1240001441321 |
6 | 101443444335 |
7 | 12303341042 |
oct | 2654766143 |
9 | 875636125 |
10 | 380890211 |
11 | 1860034a9 |
12 | a76866ab |
13 | 60bb0430 |
14 | 3882c559 |
15 | 2368b55b |
hex | 16b3ec63 |
380890211 has 16 divisors (see below), whose sum is σ = 424488960. Its totient is φ = 339392160.
The previous prime is 380890199. The next prime is 380890217. The reversal of 380890211 is 112098083.
It is a cyclic number.
It is not a de Polignac number, because 380890211 - 218 = 380628067 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (380890217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201770 + ... + 203648.
It is an arithmetic number, because the mean of its divisors is an integer number (26530560).
Almost surely, 2380890211 is an apocalyptic number.
380890211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
380890211 is a deficient number, since it is larger than the sum of its proper divisors (43598749).
380890211 is a wasteful number, since it uses less digits than its factorization.
380890211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2426.
The product of its (nonzero) digits is 3456, while the sum is 32.
The square root of 380890211 is about 19516.4087628846. The cubic root of 380890211 is about 724.8808117980.
The spelling of 380890211 in words is "three hundred eighty million, eight hundred ninety thousand, two hundred eleven".
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