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30111223131420 = 2235501853718857
BaseRepresentation
bin1101101100010110100001…
…10000100010110100011100
310221121121022220122020201220
412312023100300202310130
512421320241110201140
6144012523244533340
76225315115405404
oct666132060426434
9127547286566656
1030111223131420
11965a109506982
12346390b851250
1313a562616c152
14761568ba1804
153733de47abd0
hex1b62d0c22d1c

30111223131420 has 24 divisors (see below), whose sum is σ = 84311424768144. Its totient is φ = 8029659501696.

The previous prime is 30111223131343. The next prime is 30111223131421. The reversal of 30111223131420 is 2413132211103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111223131421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250926859369 + ... + 250926859488.

It is an arithmetic number, because the mean of its divisors is an integer number (3512976032006).

Almost surely, 230111223131420 is an apocalyptic number.

30111223131420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30111223131420 is an abundant number, since it is smaller than the sum of its proper divisors (54200201636724).

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

30111223131420 is a wasteful number, since it uses less digits than its factorization.

30111223131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501853718869 (or 501853718867 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 30111223131420 its reverse (2413132211103), we get a palindrome (32524355342523).

The spelling of 30111223131420 in words is "thirty trillion, one hundred eleven billion, two hundred twenty-three million, one hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 501853718857 1003707437714 1505561156571 2007414875428 2509268594285 3011122313142 5018537188570 6022244626284 7527805782855 10037074377140 15055611565710 30111223131420