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143042012 = 22172239433
BaseRepresentation
bin10001000011010…
…10010111011100
3100222011021202022
420201222113130
5243104321022
622105515312
73354560051
oct1041522734
9328137668
10143042012
117381a643
123baa2b38
1323833b59
1414dd7028
15c857c42
hex886a5dc

143042012 has 24 divisors (see below), whose sum is σ = 266265216. Its totient is φ = 67004928.

The previous prime is 143041999. The next prime is 143042041. The reversal of 143042012 is 210240341.

It is a super-2 number, since 2×1430420122 = 40922034394016288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10448 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (11094384).

Almost surely, 2143042012 is an apocalyptic number.

It is an amenable number.

143042012 is a deficient number, since it is larger than the sum of its proper divisors (123223204).

143042012 is a wasteful number, since it uses less digits than its factorization.

143042012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677 (or 9675 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143042012 is about 11960.0172240679. The cubic root of 143042012 is about 522.9833589437.

Adding to 143042012 its reverse (210240341), we get a palindrome (353282353).

The spelling of 143042012 in words is "one hundred forty-three million, forty-two thousand, twelve".

Divisors: 1 2 4 17 34 68 223 446 892 3791 7582 9433 15164 18866 37732 160361 320722 641444 2103559 4207118 8414236 35760503 71521006 143042012