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30130222020 = 223510719324317
BaseRepresentation
bin11100000011111001…
…101011001111000100
32212202211022212101220
4130003321223033010
5443201314101040
621501443120340
72114440442613
oct340371531704
985684285356
1030130222020
11118617a7838
125a0a6730b0
132ac235a952
14165b86587a
15bb529d2d0
hex703e6b3c4

30130222020 has 96 divisors (see below), whose sum is σ = 85597803648. Its totient is φ = 7918067712.

The previous prime is 30130221977. The next prime is 30130222033. The reversal of 30130222020 is 2022203103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226902 + ... + 1251218.

It is an arithmetic number, because the mean of its divisors is an integer number (891643788).

Almost surely, 230130222020 is an apocalyptic number.

30130222020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30130222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42798901824).

30130222020 is an abundant number, since it is smaller than the sum of its proper divisors (55467581628).

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

30130222020 is a wasteful number, since it uses less digits than its factorization.

30130222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24629 (or 24627 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30130222020 its reverse (2022203103), we get a palindrome (32152425123).

The spelling of 30130222020 in words is "thirty billion, one hundred thirty million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 107 193 214 321 386 428 535 579 642 772 965 1070 1158 1284 1605 1930 2140 2316 2895 3210 3860 5790 6420 11580 20651 24317 41302 48634 61953 72951 82604 97268 103255 121585 123906 145902 206510 243170 247812 291804 309765 364755 413020 486340 619530 729510 1239060 1459020 2601919 4693181 5203838 7805757 9386362 10407676 13009595 14079543 15611514 18772724 23465905 26019190 28159086 31223028 39028785 46931810 52038380 56318172 70397715 78057570 93863620 140795430 156115140 281590860 502170367 1004340734 1506511101 2008681468 2510851835 3013022202 5021703670 6026044404 7532555505 10043407340 15065111010 30130222020