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380046209 is a prime number
BaseRepresentation
bin10110101001110…
…000101110000001
3222111010100101112
4112221300232001
51234242434314
6101413413105
712263224304
oct2651605601
9874110345
10380046209
11185587384
12a733a195
136097621a
143868cb3b
152357143e
hex16a70b81

380046209 has 2 divisors, whose sum is σ = 380046210. Its totient is φ = 380046208.

The previous prime is 380046193. The next prime is 380046241. The reversal of 380046209 is 902640083.

It is an a-pointer prime, because the next prime (380046241) can be obtained adding 380046209 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366148225 + 13897984 = 19135^2 + 3728^2 .

It is a cyclic number.

It is not a de Polignac number, because 380046209 - 24 = 380046193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (380046259) 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, 190023104 + 190023105.

It is an arithmetic number, because the mean of its divisors is an integer number (190023105).

Almost surely, 2380046209 is an apocalyptic number.

It is an amenable number.

380046209 is a deficient number, since it is larger than the sum of its proper divisors (1).

380046209 is an equidigital number, since it uses as much as digits as its factorization.

380046209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 380046209 is about 19494.7738894300. The cubic root of 380046209 is about 724.3450027170.

The spelling of 380046209 in words is "three hundred eighty million, forty-six thousand, two hundred nine".