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143243012 = 221141271293
BaseRepresentation
bin10001000100110…
…11011100000100
3100222112111110202
420202123130010
5243132234022
622114110032
73356355053
oct1042333404
9328474422
10143243012
1173947660
123bb7b318
13238a44a3
141504a39a
15c897592
hex889b704

143243012 has 48 divisors (see below), whose sum is σ = 282127104. Its totient is φ = 63072000.

The previous prime is 143242999. The next prime is 143243017. The reversal of 143243012 is 210342341.

It is not an unprimeable number, because it can be changed into a prime (143243017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488738 + ... + 489030.

It is an arithmetic number, because the mean of its divisors is an integer number (5877648).

Almost surely, 2143243012 is an apocalyptic number.

It is an amenable number.

143243012 is a deficient number, since it is larger than the sum of its proper divisors (138884092).

143243012 is a wasteful number, since it uses less digits than its factorization.

143243012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143243012 is about 11968.4172721375. The cubic root of 143243012 is about 523.2282064881.

Adding to 143243012 its reverse (210342341), we get a palindrome (353585353).

It can be divided in two parts, 1432 and 43012, that added together give a palindrome (44444).

The spelling of 143243012 in words is "one hundred forty-three million, two hundred forty-three thousand, twelve".

Divisors: 1 2 4 11 22 41 44 82 164 271 293 451 542 586 902 1084 1172 1804 2981 3223 5962 6446 11111 11924 12013 12892 22222 24026 44444 48052 79403 122221 132143 158806 244442 264286 317612 488884 528572 873433 1746866 3255523 3493732 6511046 13022092 35810753 71621506 143243012