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12240431203 = 7111322340897
BaseRepresentation
bin10110110011001011…
…00010100001100011
31011121001112022221211
423121211202201203
5200032022244303
65342334530551
7612220643230
oct133145424143
934531468854
1012240431203
11521144a150
122457366a57
131200c06a00
14841926787
154b991466d
hex2d9962863

12240431203 has 48 divisors (see below), whose sum is σ = 17243905536. Its totient is φ = 8421304320.

The previous prime is 12240431197. The next prime is 12240431219. The reversal of 12240431203 is 30213404221.

It is a de Polignac number, because none of the positive numbers 2k-12240431203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240431303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278851 + ... + 319747.

It is an arithmetic number, because the mean of its divisors is an integer number (359248032).

Almost surely, 212240431203 is an apocalyptic number.

12240431203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12240431203 is a deficient number, since it is larger than the sum of its proper divisors (5003474333).

12240431203 is a wasteful number, since it uses less digits than its factorization.

12240431203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40964 (or 40951 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12240431203 its reverse (30213404221), we get a palindrome (42453835424).

The spelling of 12240431203 in words is "twelve billion, two hundred forty million, four hundred thirty-one thousand, two hundred three".

Divisors: 1 7 11 13 23 77 91 143 161 169 253 299 1001 1183 1771 1859 2093 3289 3887 13013 23023 27209 40897 42757 286279 299299 449867 531661 940631 3149069 3721627 5848271 6584417 6911593 10346941 12228203 40937897 48381151 72428587 76027523 85597421 134510233 158966639 532192661 941571631 1112766473 1748633029 12240431203