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30003442120 = 2351744122709
BaseRepresentation
bin11011111100010110…
…000011000111001000
32212102222202210002001
4123330112003013020
5442421340121440
621441113520344
72111341023121
oct337426030710
985388683061
1030003442120
11117a7185163
1259941130b4
132aa1ccba62
141648aa3048
15ba90a8b9a
hex6fc5831c8

30003442120 has 32 divisors (see below), whose sum is σ = 71478790200. Its totient is φ = 11295413248.

The previous prime is 30003442003. The next prime is 30003442121. The reversal of 30003442120 is 2124430003.

It can be written as a sum of positive squares in 4 ways, for example, as 25794287236 + 4209154884 = 160606^2 + 64878^2 .

It is not an unprimeable number, because it can be changed into a prime (30003442121) 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 7 ways as a sum of consecutive naturals, for example, 22060675 + ... + 22062034.

Almost surely, 230003442120 is an apocalyptic number.

It is an amenable number.

30003442120 is an abundant number, since it is smaller than the sum of its proper divisors (41475348080).

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

30003442120 is a wasteful number, since it uses less digits than its factorization.

30003442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44122737 (or 44122733 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30003442120 its reverse (2124430003), we get a palindrome (32127872123).

The spelling of 30003442120 in words is "thirty billion, three million, four hundred forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 44122709 88245418 176490836 220613545 352981672 441227090 750086053 882454180 1500172106 1764908360 3000344212 3750430265 6000688424 7500860530 15001721060 30003442120