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12130241212 = 2219527330269
BaseRepresentation
bin10110100110000010…
…01100101010111100
31011022101012002201001
423103001030222330
5144320320204322
65323401100044
7606412230505
oct132301145274
934271162631
1012130241212
115165228841
122426487624
1311b413602b
14831041bac
154aedea827
hex2d304cabc

12130241212 has 24 divisors (see below), whose sum is σ = 22350157200. Its totient is φ = 5744624256.

The previous prime is 12130241161. The next prime is 12130241213. The reversal of 12130241212 is 21214203121.

It is a super-2 number, since 2×121302412122 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12130241212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130241213) 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, 385614 + ... + 415882.

It is an arithmetic number, because the mean of its divisors is an integer number (931256550).

Almost surely, 212130241212 is an apocalyptic number.

It is an amenable number.

12130241212 is a deficient number, since it is larger than the sum of its proper divisors (10219915988).

12130241212 is a wasteful number, since it uses less digits than its factorization.

12130241212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35565 (or 35563 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12130241212 its reverse (21214203121), we get a palindrome (33344444333).

The spelling of 12130241212 in words is "twelve billion, one hundred thirty million, two hundred forty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 5273 10546 21092 30269 60538 100187 121076 200374 400748 575111 1150222 2300444 159608437 319216874 638433748 3032560303 6065120606 12130241212