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12032131208 = 231725204209
BaseRepresentation
bin10110011010010101…
…11100000010001000
31011001112120121002012
423031022330002020
5144120211144313
65305534155052
7604111266506
oct131512740210
934045517065
1012032131208
115114908299
1223b9652a88
131199a04886
14821dc3676
154a64bada8
hex2cd2bc088

12032131208 has 24 divisors (see below), whose sum is σ = 23965387050. Its totient is φ = 5662178304.

The previous prime is 12032131207. The next prime is 12032131253. The reversal of 12032131208 is 80213123021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11663568004 + 368563204 = 107998^2 + 19198^2 .

It is not an unprimeable number, because it can be changed into a prime (12032131207) 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, 2599793 + ... + 2604416.

Almost surely, 212032131208 is an apocalyptic number.

It is an amenable number.

12032131208 is a deficient number, since it is larger than the sum of its proper divisors (11933255842).

12032131208 is a wasteful number, since it uses less digits than its factorization.

12032131208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204249 (or 5204228 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12032131208 its reverse (80213123021), we get a palindrome (92245254229).

The spelling of 12032131208 in words is "twelve billion, thirty-two million, one hundred thirty-one thousand, two hundred eight".

Divisors: 1 2 4 8 17 34 68 136 289 578 1156 2312 5204209 10408418 20816836 41633672 88471553 176943106 353886212 707772424 1504016401 3008032802 6016065604 12032131208