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30302230020 = 22351513344617
BaseRepresentation
bin11100001110001001…
…110101011000000100
32220012210222210000120
4130032021311120010
5444024332330040
621530505541540
72121626463636
oct341611653004
986183883016
1030302230020
111193a900a07
125a581a48b0
132b1bb93c2a
14167663ca56
15bc54287d0
hex70e275604

30302230020 has 48 divisors (see below), whose sum is σ = 85408165248. Its totient is φ = 8027078400.

The previous prime is 30302230019. The next prime is 30302230051. The reversal of 30302230020 is 2003220303.

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 15 ways as a sum of consecutive naturals, for example, 1663249 + ... + 1681368.

It is an arithmetic number, because the mean of its divisors is an integer number (1779336776).

Almost surely, 230302230020 is an apocalyptic number.

30302230020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30302230020 is an abundant number, since it is smaller than the sum of its proper divisors (55105935228).

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

30302230020 is a wasteful number, since it uses less digits than its factorization.

30302230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344780 (or 3344778 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 30302230020 its reverse (2003220303), we get a palindrome (32305450323).

The spelling of 30302230020 in words is "thirty billion, three hundred two million, two hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 151 302 453 604 755 906 1510 1812 2265 3020 4530 9060 3344617 6689234 10033851 13378468 16723085 20067702 33446170 40135404 50169255 66892340 100338510 200677020 505037167 1010074334 1515111501 2020148668 2525185835 3030223002 5050371670 6060446004 7575557505 10100743340 15151115010 30302230020