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12144210211 = 74393951907
BaseRepresentation
bin10110100111101100…
…11111000100100011
31011100100110210120101
423103312133010203
5144332404211321
65325020323231
7606642040450
oct132366370443
934310423511
1012144210211
1151720a9971
12242b0a3517
1311b6cb7303
14832c3a827
154b1259791
hex2d3d9f123

12144210211 has 8 divisors (see below), whose sum is σ = 13910716160. Its totient is φ = 10385608968.

The previous prime is 12144210203. The next prime is 12144210251. The reversal of 12144210211 is 11201244121.

It is a happy number.

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

It is not a de Polignac number, because 12144210211 - 23 = 12144210203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144210251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972881 + ... + 1979026.

It is an arithmetic number, because the mean of its divisors is an integer number (1738839520).

Almost surely, 212144210211 is an apocalyptic number.

12144210211 is a deficient number, since it is larger than the sum of its proper divisors (1766505949).

12144210211 is an equidigital number, since it uses as much as digits as its factorization.

12144210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952353.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12144210211 its reverse (11201244121), we get a palindrome (23345454332).

The spelling of 12144210211 in words is "twelve billion, one hundred forty-four million, two hundred ten thousand, two hundred eleven".

Divisors: 1 7 439 3073 3951907 27663349 1734887173 12144210211