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30020120120 = 2354715968149
BaseRepresentation
bin11011111101010101…
…101010111000111000
32212111011011002222202
4123331111222320320
5442440122320440
621442511205332
72111632545044
oct337525527070
985434132882
1030020120120
1111805636631
125999816848
132aa55bb0b3
14164ada5024
15baa7a0615
hex6fd56ae38

30020120120 has 32 divisors (see below), whose sum is σ = 68982408000. Its totient is φ = 11752556928.

The previous prime is 30020120113. The next prime is 30020120177. The reversal of 30020120120 is 2102102003.

It is a happy number.

It is a super-2 number, since 2×300201201202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7982195 + ... + 7985954.

It is an arithmetic number, because the mean of its divisors is an integer number (2155700250).

Almost surely, 230020120120 is an apocalyptic number.

It is an amenable number.

30020120120 is an abundant number, since it is smaller than the sum of its proper divisors (38962287880).

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

30020120120 is a wasteful number, since it uses less digits than its factorization.

30020120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15968207 (or 15968203 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30020120120 its reverse (2102102003), we get a palindrome (32122222123).

The spelling of 30020120120 in words is "thirty billion, twenty million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1880 15968149 31936298 63872596 79840745 127745192 159681490 319362980 638725960 750503003 1501006006 3002012012 3752515015 6004024024 7505030030 15010060060 30020120120