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30153189 = 3111759911
BaseRepresentation
bin111001100000…
…1100111100101
32002201221101210
41303001213211
530204400224
62554142033
7514204113
oct163014745
962657353
1030153189
11160255a0
12a121919
136329931
14400cab3
1529a9429
hex1cc19e5

30153189 has 32 divisors (see below), whose sum is σ = 47278080. Its totient is φ = 16889600.

The previous prime is 30153181. The next prime is 30153199. The reversal of 30153189 is 98135103.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30153189 - 23 = 30153181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30153181) 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 31 ways as a sum of consecutive naturals, for example, 32644 + ... + 33554.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 230153189 is an apocalyptic number.

It is an amenable number.

30153189 is a deficient number, since it is larger than the sum of its proper divisors (17124891).

30153189 is a wasteful number, since it uses less digits than its factorization.

30153189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 30153189 is about 5491.1919471095. The cubic root of 30153189 is about 311.2512349752.

The spelling of 30153189 in words is "thirty million, one hundred fifty-three thousand, one hundred eighty-nine".

Divisors: 1 3 11 17 33 51 59 177 187 561 649 911 1003 1947 2733 3009 10021 11033 15487 30063 33099 46461 53749 161247 170357 511071 591239 913733 1773717 2741199 10051063 30153189