Search a number
-
+
5831381 is a prime number
BaseRepresentation
bin10110001111101011010101
3101222021011002
4112033223111
52443101011
6324553045
7100365053
oct26175325
911867132
105831381
113323226
121b52785
13129232a
14abb1d3
157a2c3b
hex58fad5

5831381 has 2 divisors, whose sum is σ = 5831382. Its totient is φ = 5831380.

The previous prime is 5831363. The next prime is 5831387. The reversal of 5831381 is 1831385.

5831381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 2353156 = 1865^2 + 1534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5831381 is a prime.

It is a super-2 number, since 2×58313812 = 68010008734322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5831387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2915690 + 2915691.

It is an arithmetic number, because the mean of its divisors is an integer number (2915691).

Almost surely, 25831381 is an apocalyptic number.

It is an amenable number.

5831381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5831381 is an equidigital number, since it uses as much as digits as its factorization.

5831381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 5831381 is about 2414.8252524769. The cubic root of 5831381 is about 179.9936314619.

The spelling of 5831381 in words is "five million, eight hundred thirty-one thousand, three hundred eighty-one".