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30300232144 = 2471320810599
BaseRepresentation
bin11100001110000010…
…001101100111010000
32220012200020021110011
4130032002031213100
5444023324412034
621530355044304
72121603503140
oct341602154720
986180207404
1030300232144
1111939766976
125a575a0694
132b1b644760
14167627c920
15bc5181864
hex70e08d9d0

30300232144 has 40 divisors (see below), whose sum is σ = 72254403200. Its totient is φ = 11986904448.

The previous prime is 30300232087. The next prime is 30300232147. The reversal of 30300232144 is 44123200303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30300232147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10403844 + ... + 10406755.

It is an arithmetic number, because the mean of its divisors is an integer number (1806360080).

Almost surely, 230300232144 is an apocalyptic number.

It is an amenable number.

30300232144 is an abundant number, since it is smaller than the sum of its proper divisors (41954171056).

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

30300232144 is a wasteful number, since it uses less digits than its factorization.

30300232144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20810627 (or 20810621 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30300232144 its reverse (44123200303), we get a palindrome (74423432447).

The spelling of 30300232144 in words is "thirty billion, three hundred million, two hundred thirty-two thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 20810599 41621198 83242396 145674193 166484792 270537787 291348386 332969584 541075574 582696772 1082151148 1165393544 1893764509 2164302296 2330787088 3787529018 4328604592 7575058036 15150116072 30300232144