Base | Representation |
---|---|
bin | 10110101100100… |
… | …011111110100001 |
3 | 222112111122120121 |
4 | 112230203332201 |
5 | 1234434433244 |
6 | 101441240241 |
7 | 12302403040 |
oct | 2654437641 |
9 | 875448517 |
10 | 380780449 |
11 | 185a38a95 |
12 | a7633081 |
13 | 60b7249a |
14 | 38800557 |
15 | 23668c84 |
hex | 16b23fa1 |
380780449 has 8 divisors (see below), whose sum is σ = 435303680. Its totient is φ = 326288736.
The previous prime is 380780447. The next prime is 380780459. The reversal of 380780449 is 944087083.
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 380780449 - 21 = 380780447 is a prime.
It is not an unprimeable number, because it can be changed into a prime (380780441) 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, 30472 + ... + 41110.
It is an arithmetic number, because the mean of its divisors is an integer number (54412960).
Almost surely, 2380780449 is an apocalyptic number.
It is an amenable number.
380780449 is a deficient number, since it is larger than the sum of its proper divisors (54523231).
380780449 is a wasteful number, since it uses less digits than its factorization.
380780449 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15759.
The product of its (nonzero) digits is 193536, while the sum is 43.
The square root of 380780449 is about 19513.5965162755. The cubic root of 380780449 is about 724.8111749234.
The spelling of 380780449 in words is "three hundred eighty million, seven hundred eighty thousand, four hundred forty-nine".
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