Base | Representation |
---|---|
bin | 10110101100110… |
… | …000110111011101 |
3 | 222112121100000000 |
4 | 112230300313131 |
5 | 1234443130440 |
6 | 101442324513 |
7 | 12303013002 |
oct | 2654606735 |
9 | 875540000 |
10 | 380833245 |
11 | 185a74721 |
12 | a7659739 |
13 | 60b90520 |
14 | 388158a9 |
15 | 23679730 |
hex | 16b30ddd |
380833245 has 144 divisors (see below), whose sum is σ = 793578240. Its totient is φ = 173840256.
The previous prime is 380833237. The next prime is 380833301. The reversal of 380833245 is 542338083.
380833245 is a `hidden beast` number, since 380 + 8 + 33 + 245 = 666.
It is not a de Polignac number, because 380833245 - 23 = 380833237 is a prime.
It is a Curzon number.
It is a nialpdrome in base 9.
It is a congruent number.
It is an unprimeable number.
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 143 ways as a sum of consecutive naturals, for example, 8102812 + ... + 8102858.
It is an arithmetic number, because the mean of its divisors is an integer number (5510960).
Almost surely, 2380833245 is an apocalyptic number.
It is an amenable number.
380833245 is an abundant number, since it is smaller than the sum of its proper divisors (412744995).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380833245 is an equidigital number, since it uses as much as digits as its factorization.
380833245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108 (or 87 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 36.
The square root of 380833245 is about 19514.9492697265. The cubic root of 380833245 is about 724.8446722335.
It can be divided in two parts, 38083 and 3245, that added together give a triangular number (41328 = T287).
The spelling of 380833245 in words is "three hundred eighty million, eight hundred thirty-three thousand, two hundred forty-five".
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