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12041420132 = 227261435817
BaseRepresentation
bin10110011011011100…
…10111110101100100
31011002012001112002102
423031232113311210
5144130100421012
65310505231232
7604253245100
oct131556276544
934065045072
1012041420132
11511a082195
122400792518
13119b907891
14823320900
154a72032c2
hex2cdb97d64

12041420132 has 18 divisors (see below), whose sum is σ = 24512891382. Its totient is φ = 5160608544.

The previous prime is 12041420113. The next prime is 12041420137. The reversal of 12041420132 is 23102414021.

It can be written as a sum of positive squares in only one way, i.e., 11729756416 + 311663716 = 108304^2 + 17654^2 .

It is not an unprimeable number, because it can be changed into a prime (12041420137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30717713 + ... + 30718104.

It is an arithmetic number, because the mean of its divisors is an integer number (1361827299).

Almost surely, 212041420132 is an apocalyptic number.

It is an amenable number.

12041420132 is an abundant number, since it is smaller than the sum of its proper divisors (12471471250).

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

12041420132 is a wasteful number, since it uses less digits than its factorization.

12041420132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61435835 (or 61435826 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12041420132 its reverse (23102414021), we get a palindrome (35143834153).

The spelling of 12041420132 in words is "twelve billion, forty-one million, four hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 61435817 122871634 245743268 430050719 860101438 1720202876 3010355033 6020710066 12041420132