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12113020020 = 2235434694969
BaseRepresentation
bin10110100011111111…
…00000010001110100
31011021011210011200010
423101333200101310
5144301413120040
65321544020220
7606112654113
oct132177402164
934234704603
1012113020020
115156536252
122420761670
1311b06b668a
1482ca3bc7a
154ad647e80
hex2d1fe0474

12113020020 has 48 divisors (see below), whose sum is σ = 34705218240. Its totient is φ = 3155018496.

The previous prime is 12113020019. The next prime is 12113020021. The reversal of 12113020020 is 2002031121.

12113020020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12113020019) and next prime (12113020021).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12113019978 and 12113020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113020021) 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 15 ways as a sum of consecutive naturals, for example, 2344905 + ... + 2350064.

It is an arithmetic number, because the mean of its divisors is an integer number (723025380).

Almost surely, 212113020020 is an apocalyptic number.

12113020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113020020 is an abundant number, since it is smaller than the sum of its proper divisors (22592198220).

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

12113020020 is a wasteful number, since it uses less digits than its factorization.

12113020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695024 (or 4695022 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12113020020 its reverse (2002031121), we get a palindrome (14115051141).

The spelling of 12113020020 in words is "twelve billion, one hundred thirteen million, twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 4694969 9389938 14084907 18779876 23474845 28169814 46949690 56339628 70424535 93899380 140849070 201883667 281698140 403767334 605651001 807534668 1009418335 1211302002 2018836670 2422604004 3028255005 4037673340 6056510010 12113020020