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380207969 is a prime number
BaseRepresentation
bin10110101010011…
…000001101100001
3222111102120021122
4112222120031201
51234313123334
6101421102025
712264500021
oct2652301541
9874376248
10380207969
11185687969
12a73b7915
1360a01a3b
14386d1a81
15235a432e
hex16a98361

380207969 has 2 divisors, whose sum is σ = 380207970. Its totient is φ = 380207968.

The previous prime is 380207923. The next prime is 380207987. The reversal of 380207969 is 969702083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363397969 + 16810000 = 19063^2 + 4100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380207969 is a prime.

It is a super-2 number, since 2×3802079692 = 289116199382209922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (380207909) 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, 190103984 + 190103985.

It is an arithmetic number, because the mean of its divisors is an integer number (190103985).

Almost surely, 2380207969 is an apocalyptic number.

It is an amenable number.

380207969 is a deficient number, since it is larger than the sum of its proper divisors (1).

380207969 is an equidigital number, since it uses as much as digits as its factorization.

380207969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 380207969 is about 19498.9222522682. The cubic root of 380207969 is about 724.4477563866.

The spelling of 380207969 in words is "three hundred eighty million, two hundred seven thousand, nine hundred sixty-nine".