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30424252120 = 2353472191949
BaseRepresentation
bin11100010101011011…
…010011111011011000
32220112022121010212121
4130111123103323120
5444302102031440
621550545151024
72124640606333
oct342533237330
986468533777
1030424252120
11119a2773a19
125a9102b474
132b3b248362
14168892361a
15bd0ecd34a
hex7156d3ed8

30424252120 has 32 divisors (see below), whose sum is σ = 68651874000. Its totient is φ = 12134624128.

The previous prime is 30424252073. The next prime is 30424252127. The reversal of 30424252120 is 2125242403.

It is a super-2 number, since 2×304242521202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30424252127) 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, 1082095 + ... + 1109854.

Almost surely, 230424252120 is an apocalyptic number.

It is an amenable number.

30424252120 is an abundant number, since it is smaller than the sum of its proper divisors (38227621880).

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

30424252120 is a wasteful number, since it uses less digits than its factorization.

30424252120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192307 (or 2192303 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 30424252120 its reverse (2125242403), we get a palindrome (32549494523).

The spelling of 30424252120 in words is "thirty billion, four hundred twenty-four million, two hundred fifty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 347 694 1388 1735 2776 3470 6940 13880 2191949 4383898 8767796 10959745 17535592 21919490 43838980 87677960 760606303 1521212606 3042425212 3803031515 6084850424 7606063030 15212126060 30424252120