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30330496665 = 3257683140977
BaseRepresentation
bin11100001111110101…
…101010011010011001
32220021210011212120100
4130033311222122121
5444104101343130
621533355450013
72122421652660
oct341765523231
986253155510
1030330496665
1111954858077
125a65756909
132b249acc61
14167a2b9dd7
15bc7b5dc60
hex70fd6a699

30330496665 has 48 divisors (see below), whose sum is σ = 60171666048. Its totient is φ = 13844971008.

The previous prime is 30330496643. The next prime is 30330496673. The reversal of 30330496665 is 56669403303.

It is not a de Polignac number, because 30330496665 - 210 = 30330495641 is a prime.

It is a super-2 number, since 2×303304966652 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30330496665.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144657 + ... + 285633.

It is an arithmetic number, because the mean of its divisors is an integer number (1253576376).

Almost surely, 230330496665 is an apocalyptic number.

30330496665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30330496665 is a deficient number, since it is larger than the sum of its proper divisors (29841169383).

30330496665 is a wasteful number, since it uses less digits than its factorization.

30330496665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141678 (or 141675 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 45.

Adding to 30330496665 its reverse (56669403303), we get a palindrome (86999899968).

The spelling of 30330496665 in words is "thirty billion, three hundred thirty million, four hundred ninety-six thousand, six hundred sixty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 683 2049 3415 4781 6147 10245 14343 23905 30735 43029 71715 140977 215145 422931 704885 986839 1268793 2114655 2960517 4934195 6343965 8881551 14802585 44407755 96287291 288861873 481436455 674011037 866585619 1444309365 2022033111 3370055185 4332928095 6066099333 10110165555 30330496665