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28830434575 = 526197194899
BaseRepresentation
bin11010110110011011…
…011000010100001111
32202102020112211020011
4122312123120110033
5433021042401300
621124452134051
72040305436055
oct326633302417
982366484204
1028830434575
1111255035238
125707307327
132945c98657
141576d9c1d5
15b3b100eba
hex6b66d850f

28830434575 has 24 divisors (see below), whose sum is σ = 36710584400. Its totient is φ = 22452249600.

The previous prime is 28830434551. The next prime is 28830434597. The reversal of 28830434575 is 57543403882.

It is not a de Polignac number, because 28830434575 - 229 = 28293563663 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 50476 + ... + 245374.

Almost surely, 228830434575 is an apocalyptic number.

28830434575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28830434575 is a deficient number, since it is larger than the sum of its proper divisors (7880149825).

28830434575 is a wasteful number, since it uses less digits than its factorization.

28830434575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195067 (or 195062 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 28830434575 in words is "twenty-eight billion, eight hundred thirty million, four hundred thirty-four thousand, five hundred seventy-five".

Divisors: 1 5 25 61 97 305 485 1525 2425 5917 29585 147925 194899 974495 4872475 11888839 18905203 59444195 94526015 297220975 472630075 1153217383 5766086915 28830434575