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30523048191 = 32171232316189
BaseRepresentation
bin11100011011010100…
…001100000011111111
32220210012111111121100
4130123110030003333
51000002400020231
622004434504143
72130250425456
oct343324140377
986705444540
1030523048191
1111a43512969
125aba135053
132b55859b7c
141697abdb9d
15bd99e61e6
hex71b50c0ff

30523048191 has 24 divisors (see below), whose sum is σ = 46688981040. Its totient is φ = 19148979456.

The previous prime is 30523048189. The next prime is 30523048243. The reversal of 30523048191 is 19184032503.

30523048191 is a `hidden beast` number, since 3 + 0 + 523 + 0 + 48 + 1 + 91 = 666.

It is not a de Polignac number, because 30523048191 - 21 = 30523048189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30523043191) 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 in 23 ways as a sum of consecutive naturals, for example, 1877325 + ... + 1893513.

It is an arithmetic number, because the mean of its divisors is an integer number (1945374210).

Almost surely, 230523048191 is an apocalyptic number.

30523048191 is a deficient number, since it is larger than the sum of its proper divisors (16165932849).

30523048191 is a wasteful number, since it uses less digits than its factorization.

30523048191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28535 (or 28532 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 30523048191 in words is "thirty billion, five hundred twenty-three million, forty-eight thousand, one hundred ninety-one".

Divisors: 1 3 9 17 51 153 12323 16189 36969 48567 110907 145701 209491 275213 628473 825639 1885419 2476917 199497047 598491141 1795473423 3391449799 10174349397 30523048191