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143312053212 = 223241531831979
BaseRepresentation
bin1000010101111000010…
…0000110001111011100
3111200220122220121121200
42011132010012033130
54322000341200322
6145500414355500
713232256232056
oct2053604061734
9450818817550
10143312053212
1155861a107a9
1223936abbb90
131068bb045b3
146d174648d6
153adb8a58ac
hex215e1063dc

143312053212 has 72 divisors (see below), whose sum is σ = 378098688240. Its totient is φ = 45726170880.

The previous prime is 143312053193. The next prime is 143312053219. The reversal of 143312053212 is 212350213341.

143312053212 is a `hidden beast` number, since 1 + 4 + 3 + 3 + 120 + 532 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143312053219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 837762 + ... + 994217.

It is an arithmetic number, because the mean of its divisors is an integer number (5251370670).

Almost surely, 2143312053212 is an apocalyptic number.

143312053212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143312053212 is an abundant number, since it is smaller than the sum of its proper divisors (234786635028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143312053212 is a wasteful number, since it uses less digits than its factorization.

143312053212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832083 (or 1832078 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 143312053212 its reverse (212350213341), we get a palindrome (355662266553).

The spelling of 143312053212 in words is "one hundred forty-three billion, three hundred twelve million, fifty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 41 53 82 106 123 159 164 212 246 318 369 477 492 636 738 954 1476 1908 2173 4346 6519 8692 13038 19557 26076 39114 78228 1831979 3663958 5495937 7327916 10991874 16487811 21983748 32975622 65951244 75111139 97094887 150222278 194189774 225333417 291284661 300444556 388379548 450666834 582569322 676000251 873853983 901333668 1165138644 1352000502 1747707966 2704001004 3495415932 3980890367 7961780734 11942671101 15923561468 23885342202 35828013303 47770684404 71656026606 143312053212