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12132343212 = 2231191911691
BaseRepresentation
bin10110100110010010…
…01101110110101100
31011022112010220002220
423103021031312230
5144321334440322
65323514115340
7606436134003
oct132311156654
934275126086
1012132343212
115166434030
12242711bb50
1311b46c0a12
1483142bc3a
154b01b355c
hex2d324ddac

12132343212 has 24 divisors (see below), whose sum is σ = 30882328512. Its totient is φ = 3676467600.

The previous prime is 12132343211. The next prime is 12132343213. The reversal of 12132343212 is 21234323121.

It is an interprime number because it is at equal distance from previous prime (12132343211) and next prime (12132343213).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12132343211) 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, 45955714 + ... + 45955977.

It is an arithmetic number, because the mean of its divisors is an integer number (1286763688).

Almost surely, 212132343212 is an apocalyptic number.

12132343212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132343212 is an abundant number, since it is smaller than the sum of its proper divisors (18749985300).

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

12132343212 is a wasteful number, since it uses less digits than its factorization.

12132343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91911709 (or 91911707 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 12132343212 its reverse (21234323121), we get a palindrome (33366666333).

The spelling of 12132343212 in words is "twelve billion, one hundred thirty-two million, three hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 91911691 183823382 275735073 367646764 551470146 1011028601 1102940292 2022057202 3033085803 4044114404 6066171606 12132343212