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12144453213 = 3139106127449
BaseRepresentation
bin10110100111101110…
…11010011001011101
31011100100221010220110
423103313122121131
5144332440000323
65325025440233
7606644102064
oct132367323135
934310833813
1012144453213
1151722554a2
12242b1a0079
1311b7070ab9
14832ca11db
154b12a6793
hex2d3dda65d

12144453213 has 16 divisors (see below), whose sum is σ = 16325064000. Its totient is φ = 8030186880.

The previous prime is 12144453203. The next prime is 12144453247. The reversal of 12144453213 is 31235444121.

It is not a de Polignac number, because 12144453213 - 210 = 12144452189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144453203) 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, 428713 + ... + 456161.

It is an arithmetic number, because the mean of its divisors is an integer number (1020316500).

Almost surely, 212144453213 is an apocalyptic number.

It is an amenable number.

12144453213 is a deficient number, since it is larger than the sum of its proper divisors (4180610787).

12144453213 is a wasteful number, since it uses less digits than its factorization.

12144453213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28652.

The product of its digits is 11520, while the sum is 30.

Adding to 12144453213 its reverse (31235444121), we get a palindrome (43379897334).

The spelling of 12144453213 in words is "twelve billion, one hundred forty-four million, four hundred fifty-three thousand, two hundred thirteen".

Divisors: 1 3 139 417 1061 3183 27449 82347 147479 442437 3815411 11446233 29123389 87370167 4048151071 12144453213