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30244830 = 23571113093
BaseRepresentation
bin111001101011…
…1111111011110
32002220121002220
41303113333132
530220313310
63000130210
7515035230
oct163277736
962817086
1030244830
1116088430
12a166966
13635c565
144034250
1529c6670
hex1cd7fde

30244830 has 64 divisors (see below), whose sum is σ = 90505728. Its totient is φ = 6284160.

The previous prime is 30244811. The next prime is 30244831. The reversal of 30244830 is 3844203.

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 30244830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30244831) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4237 + ... + 8856.

It is an arithmetic number, because the mean of its divisors is an integer number (1414152).

Almost surely, 230244830 is an apocalyptic number.

30244830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30244830 is an abundant number, since it is smaller than the sum of its proper divisors (60260898).

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

30244830 is a wasteful number, since it uses less digits than its factorization.

30244830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13121.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30244830 is about 5499.5299799165. The cubic root of 30244830 is about 311.5662323620.

The spelling of 30244830 in words is "thirty million, two hundred forty-four thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 2310 13093 26186 39279 65465 78558 91651 130930 144023 183302 196395 274953 288046 392790 432069 458255 549906 720115 864138 916510 1008161 1374765 1440230 2016322 2160345 2749530 3024483 4320690 5040805 6048966 10081610 15122415 30244830