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28315838179 is a prime number
BaseRepresentation
bin11010010111110000…
…010110011011100011
32201002101020121200101
4122113300112123203
5430442323310204
621001430403231
72021456440036
oct322760263343
981071217611
1028315838179
1111010609362
1255a2b00517
1328934a2845
1415288c701d
15b0ad52ea4
hex697c166e3

28315838179 has 2 divisors, whose sum is σ = 28315838180. Its totient is φ = 28315838178.

The previous prime is 28315838171. The next prime is 28315838189. The reversal of 28315838179 is 97183851382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28315838179 - 23 = 28315838171 is a prime.

It is not a weakly prime, because it can be changed into another prime (28315838171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14157919089 + 14157919090.

It is an arithmetic number, because the mean of its divisors is an integer number (14157919090).

Almost surely, 228315838179 is an apocalyptic number.

28315838179 is a deficient number, since it is larger than the sum of its proper divisors (1).

28315838179 is an equidigital number, since it uses as much as digits as its factorization.

28315838179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 55.

The spelling of 28315838179 in words is "twenty-eight billion, three hundred fifteen million, eight hundred thirty-eight thousand, one hundred seventy-nine".