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30002210221220 = 2251500110511061
BaseRepresentation
bin1101101001001011011110…
…00101010010110010100100
310221020011221121121122000022
412310211233011102302210
512413024011304034340
6143450454115534312
76214405511065646
oct664455705226244
9127204847548008
1030002210221220
119617958571a66
1234467675ba398
13139827230c063
1475a186b28896
1537065dd643b5
hex1b496f152ca4

30002210221220 has 12 divisors (see below), whose sum is σ = 63004641464604. Its totient is φ = 12000884088480.

The previous prime is 30002210221211. The next prime is 30002210221231. The reversal of 30002210221220 is 2212201220003.

It can be written as a sum of positive squares in 2 ways, for example, as 12716755395136 + 17285454826084 = 3566056^2 + 4157578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750055255511 + ... + 750055255550.

It is an arithmetic number, because the mean of its divisors is an integer number (5250386788717).

Almost surely, 230002210221220 is an apocalyptic number.

It is an amenable number.

30002210221220 is an abundant number, since it is smaller than the sum of its proper divisors (33002431243384).

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

30002210221220 is a wasteful number, since it uses less digits than its factorization.

30002210221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500110511070 (or 1500110511068 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 30002210221220 its reverse (2212201220003), we get a palindrome (32214411441223).

The spelling of 30002210221220 in words is "thirty trillion, two billion, two hundred ten million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1500110511061 3000221022122 6000442044244 7500552555305 15001105110610 30002210221220