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30193085 = 5132232083
BaseRepresentation
bin111001100101…
…1010110111101
32002210222010102
41303023112331
530212134320
62555050445
7514431326
oct163132675
962728112
1030193085
111605256a
12a140a25
136341b40
14401d44d
1529b6175
hex1ccb5bd

30193085 has 16 divisors (see below), whose sum is σ = 39212544. Its totient is φ = 22185792.

The previous prime is 30193069. The next prime is 30193091. The reversal of 30193085 is 58039103.

It is a cyclic number.

It is not a de Polignac number, because 30193085 - 24 = 30193069 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13454 + ... + 15536.

It is an arithmetic number, because the mean of its divisors is an integer number (2450784).

Almost surely, 230193085 is an apocalyptic number.

It is an amenable number.

30193085 is a deficient number, since it is larger than the sum of its proper divisors (9019459).

30193085 is a wasteful number, since it uses less digits than its factorization.

30193085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 30193085 is about 5494.8234730517. The cubic root of 30193085 is about 311.3884477328.

The spelling of 30193085 in words is "thirty million, one hundred ninety-three thousand, eighty-five".

Divisors: 1 5 13 65 223 1115 2083 2899 10415 14495 27079 135395 464509 2322545 6038617 30193085