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380936197 is a prime number
BaseRepresentation
bin10110101101001…
…010000000000101
3222112210120020001
4112231022000011
51240004424242
6101444441301
712303622105
oct2655120005
9875716201
10380936197
11186035004
12a76a9231
1360bc8345
1438841205
1523699eb7
hex16b4a005

380936197 has 2 divisors, whose sum is σ = 380936198. Its totient is φ = 380936196.

The previous prime is 380936177. The next prime is 380936243. The reversal of 380936197 is 791639083.

It is an a-pointer prime, because the next prime (380936243) can be obtained adding 380936197 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270076356 + 110859841 = 16434^2 + 10529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380936197 is a prime.

It is a super-2 number, since 2×3809361972 = 290224772369645618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380936107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190468098 + 190468099.

It is an arithmetic number, because the mean of its divisors is an integer number (190468099).

Almost surely, 2380936197 is an apocalyptic number.

It is an amenable number.

380936197 is a deficient number, since it is larger than the sum of its proper divisors (1).

380936197 is an equidigital number, since it uses as much as digits as its factorization.

380936197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 380936197 is about 19517.5868641592. The cubic root of 380936197 is about 724.9099829578.

The spelling of 380936197 in words is "three hundred eighty million, nine hundred thirty-six thousand, one hundred ninety-seven".