Search a number
-
+
379045181 is a prime number
BaseRepresentation
bin10110100101111…
…100010100111101
3222102020111020102
4112211330110331
51234013421211
6101340130445
712251554664
oct2645742475
9872214212
10379045181
11184a63289
12a6b36a25
13606b56b8
14384abddb
1523424a3b
hex1697c53d

379045181 has 2 divisors, whose sum is σ = 379045182. Its totient is φ = 379045180.

The previous prime is 379045159. The next prime is 379045187. The reversal of 379045181 is 181540973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350251225 + 28793956 = 18715^2 + 5366^2 .

It is a cyclic number.

It is not a de Polignac number, because 379045181 - 210 = 379044157 is a prime.

It is a super-2 number, since 2×3790451812 = 287350498478645522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379045187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189522590 + 189522591.

It is an arithmetic number, because the mean of its divisors is an integer number (189522591).

Almost surely, 2379045181 is an apocalyptic number.

It is an amenable number.

379045181 is a deficient number, since it is larger than the sum of its proper divisors (1).

379045181 is an equidigital number, since it uses as much as digits as its factorization.

379045181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 379045181 is about 19469.0826953917. The cubic root of 379045181 is about 723.7084773284.

The spelling of 379045181 in words is "three hundred seventy-nine million, forty-five thousand, one hundred eighty-one".