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12012020130 = 2351136400061
BaseRepresentation
bin10110010111111100…
…01110000110100010
31011000010201211212110
423023332032012202
5144100034121010
65303535140150
7603445325565
oct131376160642
934003654773
1012012020130
115104521570
1223b2974656
1311957b2a26
1481d46a4dc
154a4847120
hex2cbf8e1a2

12012020130 has 32 divisors (see below), whose sum is σ = 31449653568. Its totient is φ = 2912004800.

The previous prime is 12012020107. The next prime is 12012020131. The reversal of 12012020130 is 3102021021.

It is not an unprimeable number, because it can be changed into a prime (12012020131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18199701 + ... + 18200360.

It is an arithmetic number, because the mean of its divisors is an integer number (982801674).

Almost surely, 212012020130 is an apocalyptic number.

12012020130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012020130 is an abundant number, since it is smaller than the sum of its proper divisors (19437633438).

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

12012020130 is a wasteful number, since it uses less digits than its factorization.

12012020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36400082.

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

Adding to 12012020130 its reverse (3102021021), we get a palindrome (15114041151).

The spelling of 12012020130 in words is "twelve billion, twelve million, twenty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 36400061 72800122 109200183 182000305 218400366 364000610 400400671 546000915 800801342 1092001830 1201202013 2002003355 2402404026 4004006710 6006010065 12012020130