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30243421143 = 3313163528611
BaseRepresentation
bin11100001010101001…
…011111101111010111
32220001201022222102000
4130022221133233113
5443414303434033
621521005250343
72120313560325
oct341251375727
986051288360
1030243421143
111190a693a31
125a405639b3
132b0c943190
14166c8d0d15
15bc01ada13
hex70aa5fbd7

30243421143 has 32 divisors (see below), whose sum is σ = 48547726080. Its totient is φ = 18497121120.

The previous prime is 30243421121. The next prime is 30243421147. The reversal of 30243421143 is 34112434203.

30243421143 is a `hidden beast` number, since 302 + 4 + 342 + 1 + 14 + 3 = 666.

It is not a de Polignac number, because 30243421143 - 26 = 30243421079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243421147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207093 + ... + 321518.

It is an arithmetic number, because the mean of its divisors is an integer number (1517116440).

Almost surely, 230243421143 is an apocalyptic number.

30243421143 is a deficient number, since it is larger than the sum of its proper divisors (18304304937).

30243421143 is a wasteful number, since it uses less digits than its factorization.

30243421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528796 (or 528790 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30243421143 its reverse (34112434203), we get a palindrome (64355855346).

The spelling of 30243421143 in words is "thirty billion, two hundred forty-three million, four hundred twenty-one thousand, one hundred forty-three".

Divisors: 1 3 9 13 27 39 117 163 351 489 1467 2119 4401 6357 19071 57213 528611 1585833 4757499 6871943 14272497 20615829 61847487 86163593 185542461 258490779 775472337 1120126709 2326417011 3360380127 10081140381 30243421143