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19300228 = 2231317491
BaseRepresentation
bin100100110011…
…1111110000100
31100022112221021
41021213332010
514420101403
61525400524
7323022613
oct111477604
940275837
1019300228
11a992602
126569144
133cc9a6c
1427c587a
151a638bd
hex1267f84

19300228 has 24 divisors (see below), whose sum is σ = 35046144. Its totient is φ = 9290400.

The previous prime is 19300223. The next prime is 19300231. The reversal of 19300228 is 82200391.

It is not an unprimeable number, because it can be changed into a prime (19300223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39063 + ... + 39553.

It is an arithmetic number, because the mean of its divisors is an integer number (1460256).

Almost surely, 219300228 is an apocalyptic number.

It is an amenable number.

19300228 is a deficient number, since it is larger than the sum of its proper divisors (15745916).

19300228 is a wasteful number, since it uses less digits than its factorization.

19300228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 19300228 is about 4393.2024765540. The cubic root of 19300228 is about 268.2383155299.

The spelling of 19300228 in words is "nineteen million, three hundred thousand, two hundred twenty-eight".

Divisors: 1 2 4 31 62 124 317 491 634 982 1268 1964 9827 15221 19654 30442 39308 60884 155647 311294 622588 4825057 9650114 19300228