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30144232 = 235716599
BaseRepresentation
bin111001011111…
…1011011101000
32002201111010001
41302333123220
530204103412
62554032344
7514136026
oct162773350
962644101
1030144232
1116019898
12a1186b4
136325831
144009716
1529a6957
hex1cbf6e8

30144232 has 16 divisors (see below), whose sum is σ = 56628000. Its totient is φ = 15043440.

The previous prime is 30144229. The next prime is 30144239. The reversal of 30144232 is 23244103.

It is not an unprimeable number, because it can be changed into a prime (30144239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (3539250).

Almost surely, 230144232 is an apocalyptic number.

It is an amenable number.

30144232 is a deficient number, since it is larger than the sum of its proper divisors (26483768).

30144232 is a wasteful number, since it uses less digits than its factorization.

30144232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7176 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30144232 is about 5490.3763076860. The cubic root of 30144232 is about 311.2204128798.

Adding to 30144232 its reverse (23244103), we get a palindrome (53388335).

The spelling of 30144232 in words is "thirty million, one hundred forty-four thousand, two hundred thirty-two".

Divisors: 1 2 4 8 571 1142 2284 4568 6599 13198 26396 52792 3768029 7536058 15072116 30144232