Search a number
-
+
380630269 is a prime number
BaseRepresentation
bin10110101011111…
…111010011111101
3222112020000120101
4112223333103331
51234420132034
6101434121101
712301206145
oct2653772375
9875200511
10380630269
11185946178
12a7580191
1360b1c016
14387a1925
1523639514
hex16aff4fd

380630269 has 2 divisors, whose sum is σ = 380630270. Its totient is φ = 380630268.

The previous prime is 380630227. The next prime is 380630279. The reversal of 380630269 is 962036083.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302307769 + 78322500 = 17387^2 + 8850^2 .

It is an emirp because it is prime and its reverse (962036083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380630269 - 27 = 380630141 is a prime.

It is a super-2 number, since 2×3806302692 = 289758803358024722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380630209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190315134 + 190315135.

It is an arithmetic number, because the mean of its divisors is an integer number (190315135).

Almost surely, 2380630269 is an apocalyptic number.

It is an amenable number.

380630269 is a deficient number, since it is larger than the sum of its proper divisors (1).

380630269 is an equidigital number, since it uses as much as digits as its factorization.

380630269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 380630269 is about 19509.7480506541. The cubic root of 380630269 is about 724.7158737631.

The spelling of 380630269 in words is "three hundred eighty million, six hundred thirty thousand, two hundred sixty-nine".