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380907073 is a prime number
BaseRepresentation
bin10110101101000…
…010111001000001
3222112202002021101
4112231002321001
51240003011243
6101444054401
712303441151
oct2655027101
9875662241
10380907073
11186015138
12a7694401
1360bb8001
1438834761
152369154d
hex16b42e41

380907073 has 2 divisors, whose sum is σ = 380907074. Its totient is φ = 380907072.

The previous prime is 380907011. The next prime is 380907089. The reversal of 380907073 is 370709083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320875569 + 60031504 = 17913^2 + 7748^2 .

It is a cyclic number.

It is not a de Polignac number, because 380907073 - 225 = 347352641 is a prime.

It is a super-2 number, since 2×3809070732 = 290180396522854658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (380907173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190453536 + 190453537.

It is an arithmetic number, because the mean of its divisors is an integer number (190453537).

Almost surely, 2380907073 is an apocalyptic number.

It is an amenable number.

380907073 is a deficient number, since it is larger than the sum of its proper divisors (1).

380907073 is an equidigital number, since it uses as much as digits as its factorization.

380907073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 380907073 is about 19516.8407535646. The cubic root of 380907073 is about 724.8915084586.

The spelling of 380907073 in words is "three hundred eighty million, nine hundred seven thousand, seventy-three".