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30330344142 = 23271092208413
BaseRepresentation
bin11100001111110101…
…000101001011001110
32220021202220010100100
4130033311011023032
5444104032003032
621533352311530
72122420446210
oct341765051316
986252803310
1030330344142
111195476351a
125a656a25a6
132b249586c7
14167a27a5b0
15bc7b2d97c
hex70fd452ce

30330344142 has 48 divisors (see below), whose sum is σ = 75792768480. Its totient is φ = 8586305856.

The previous prime is 30330344129. The next prime is 30330344159. The reversal of 30330344142 is 24144303303.

30330344142 is a `hidden beast` number, since 303 + 3 + 0 + 344 + 14 + 2 = 666.

It is a super-3 number, since 3×303303441423 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1090473 + ... + 1117940.

It is an arithmetic number, because the mean of its divisors is an integer number (1579016010).

Almost surely, 230330344142 is an apocalyptic number.

30330344142 is an abundant number, since it is smaller than the sum of its proper divisors (45462424338).

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

30330344142 is a wasteful number, since it uses less digits than its factorization.

30330344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208537 (or 2208534 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 30330344142 its reverse (24144303303), we get a palindrome (54474647445).

The spelling of 30330344142 in words is "thirty billion, three hundred thirty million, three hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 109 126 218 327 654 763 981 1526 1962 2289 4578 6867 13734 2208413 4416826 6625239 13250478 15458891 19875717 30917782 39751434 46376673 92753346 139130019 240717017 278260038 481434034 722151051 1444302102 1685019119 2166453153 3370038238 4332906306 5055057357 10110114714 15165172071 30330344142