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28392830929 is a prime number
BaseRepresentation
bin11010011100010110…
…000011011111010001
32201021202010020212201
4122130112003133101
5431122031042204
621013220523201
72023413036511
oct323426033721
981252106781
1028392830929
1111050016131
125604850501
1328a641c198
141534c09841
15b129b09a4
hex69c5837d1

28392830929 has 2 divisors, whose sum is σ = 28392830930. Its totient is φ = 28392830928.

The previous prime is 28392830927. The next prime is 28392831011. The reversal of 28392830929 is 92903829382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28073672704 + 319158225 = 167552^2 + 17865^2 .

It is a cyclic number.

It is not a de Polignac number, because 28392830929 - 21 = 28392830927 is a prime.

Together with 28392830927, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28392830929.

It is not a weakly prime, because it can be changed into another prime (28392830927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14196415464 + 14196415465.

It is an arithmetic number, because the mean of its divisors is an integer number (14196415465).

Almost surely, 228392830929 is an apocalyptic number.

It is an amenable number.

28392830929 is a deficient number, since it is larger than the sum of its proper divisors (1).

28392830929 is an equidigital number, since it uses as much as digits as its factorization.

28392830929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 28392830929 in words is "twenty-eight billion, three hundred ninety-two million, eight hundred thirty thousand, nine hundred twenty-nine".