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12144212141 = 709143311953
BaseRepresentation
bin10110100111101100…
…11111100010101101
31011100100110220012212
423103312133202231
5144332404242031
65325020340205
7606642046205
oct132366374255
934310426185
1012144212141
115172100366
12242b0a4665
1311b6cb8159
14832c3b405
154b125a12b
hex2d3d9f8ad

12144212141 has 8 divisors (see below), whose sum is σ = 12170845560. Its totient is φ = 12117606912.

The previous prime is 12144211997. The next prime is 12144212153. The reversal of 12144212141 is 14121244121.

It can be written as a sum of positive squares in 4 ways, for example, as 3909375625 + 8234836516 = 62525^2 + 90746^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12144212141 - 226 = 12077103277 is a prime.

It is a super-2 number, since 2×121442121412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144215141) 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, 1010021 + ... + 1021973.

It is an arithmetic number, because the mean of its divisors is an integer number (1521355695).

Almost surely, 212144212141 is an apocalyptic number.

It is an amenable number.

12144212141 is a deficient number, since it is larger than the sum of its proper divisors (26633419).

12144212141 is a wasteful number, since it uses less digits than its factorization.

12144212141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14095.

The product of its digits is 512, while the sum is 23.

Adding to 12144212141 its reverse (14121244121), we get a palindrome (26265456262).

The spelling of 12144212141 in words is "twelve billion, one hundred forty-four million, two hundred twelve thousand, one hundred forty-one".

Divisors: 1 709 1433 11953 1015997 8474677 17128649 12144212141