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30010188 = 22313192373
BaseRepresentation
bin111001001111…
…0101101001100
32002110200020110
41302132231030
530140311223
62551120020
7513040155
oct162365514
962420213
1030010188
1115a3810a
12a073010
1362a9810
143db292c
15297bd93
hex1c9eb4c

30010188 has 24 divisors (see below), whose sum is σ = 75410608. Its totient is φ = 9233856.

The previous prime is 30010163. The next prime is 30010199. The reversal of 30010188 is 88101003.

It is a happy number.

It is a super-2 number, since 2×300101882 = 1801222767590688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96031 + ... + 96342.

Almost surely, 230010188 is an apocalyptic number.

It is an amenable number.

30010188 is an abundant number, since it is smaller than the sum of its proper divisors (45400420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30010188 is a wasteful number, since it uses less digits than its factorization.

30010188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192393 (or 192391 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 30010188 is about 5478.1555290079. The cubic root of 30010188 is about 310.7584204864.

The spelling of 30010188 in words is "thirty million, ten thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 192373 384746 577119 769492 1154238 2308476 2500849 5001698 7502547 10003396 15005094 30010188