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30028113 = 3219414283
BaseRepresentation
bin111001010001…
…1000101010001
32002111120211100
41302203011101
530141344423
62551335013
7513143343
oct162430521
962446740
1030028113
1115a4a625
12a081469
1362b4a1b
143db9293
152982343
hex1ca3151

30028113 has 24 divisors (see below), whose sum is σ = 46781280. Its totient is φ = 18498240.

The previous prime is 30028111. The next prime is 30028123. The reversal of 30028113 is 31182003.

It is not a de Polignac number, because 30028113 - 21 = 30028111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30028111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4870 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (1949220).

Almost surely, 230028113 is an apocalyptic number.

It is an amenable number.

30028113 is a deficient number, since it is larger than the sum of its proper divisors (16753167).

30028113 is a wasteful number, since it uses less digits than its factorization.

30028113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349 (or 4346 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30028113 is about 5479.7913281438. The cubic root of 30028113 is about 310.8202798790.

The spelling of 30028113 in words is "thirty million, twenty-eight thousand, one hundred thirteen".

Divisors: 1 3 9 19 41 57 123 171 369 779 2337 4283 7011 12849 38547 81377 175603 244131 526809 732393 1580427 3336457 10009371 30028113