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30030221320 = 23511431587221
BaseRepresentation
bin11011111101111100…
…001101000000001000
32212111212011022020021
4123331330031000020
5443000214040240
621443511510224
72112114445441
oct337574150010
985455138207
1030030221320
1111810305830
1259a1088374
132aa7716a38
14164c4742c8
15bab5e854a
hex6fdf0d008

30030221320 has 64 divisors (see below), whose sum is σ = 75424789440. Its totient is φ = 10666118400.

The previous prime is 30030221303. The next prime is 30030221329. The reversal of 30030221320 is 2312203003.

It is a junction number, because it is equal to n+sod(n) for n = 30030221294 and 30030221303.

It is not an unprimeable number, because it can be changed into a prime (30030221329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774691 + ... + 812530.

It is an arithmetic number, because the mean of its divisors is an integer number (1178512335).

Almost surely, 230030221320 is an apocalyptic number.

It is an amenable number.

30030221320 is an abundant number, since it is smaller than the sum of its proper divisors (45394568120).

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

30030221320 is a wasteful number, since it uses less digits than its factorization.

30030221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587286 (or 1587282 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30030221320 its reverse (2312203003), we get a palindrome (32342424323).

The spelling of 30030221320 in words is "thirty billion, thirty million, two hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 43 44 55 86 88 110 172 215 220 344 430 440 473 860 946 1720 1892 2365 3784 4730 9460 18920 1587221 3174442 6348884 7936105 12697768 15872210 17459431 31744420 34918862 63488840 68250503 69837724 87297155 136501006 139675448 174594310 273002012 341252515 349188620 546004024 682505030 698377240 750755533 1365010060 1501511066 2730020120 3003022132 3753777665 6006044264 7507555330 15015110660 30030221320