Base | Representation |
---|---|
bin | 10110101010100… |
… | …010010101110101 |
3 | 222111111200012101 |
4 | 112222202111311 |
5 | 1234320440321 |
6 | 101422022101 |
7 | 12265032004 |
oct | 2652422565 |
9 | 874450171 |
10 | 380249461 |
11 | 185706059 |
12 | a7417931 |
13 | 60a178a7 |
14 | 38702c3b |
15 | 235b1791 |
hex | 16aa2575 |
380249461 has 2 divisors, whose sum is σ = 380249462. Its totient is φ = 380249460.
The previous prime is 380249459. The next prime is 380249483. The reversal of 380249461 is 164942083.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 379080900 + 1168561 = 19470^2 + 1081^2 .
It is a cyclic number.
It is not a de Polignac number, because 380249461 - 21 = 380249459 is a prime.
Together with 380249459, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 380249461.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (380249161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190124730 + 190124731.
It is an arithmetic number, because the mean of its divisors is an integer number (190124731).
Almost surely, 2380249461 is an apocalyptic number.
It is an amenable number.
380249461 is a deficient number, since it is larger than the sum of its proper divisors (1).
380249461 is an equidigital number, since it uses as much as digits as its factorization.
380249461 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 41472, while the sum is 37.
The square root of 380249461 is about 19499.9861794823. The cubic root of 380249461 is about 724.4741083618.
The spelling of 380249461 in words is "three hundred eighty million, two hundred forty-nine thousand, four hundred sixty-one".
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