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143027406 = 2327945967
BaseRepresentation
bin10001000011001…
…10110011001110
3100222010112201100
420201212303032
5243103334111
622105323530
73354466344
oct1041466316
9328115640
10143027406
117380a675
123ba965a6
132382a302
1414dd1994
15c853756
hex8866cce

143027406 has 12 divisors (see below), whose sum is σ = 309892752. Its totient is φ = 47675796.

The previous prime is 143027369. The next prime is 143027407. The reversal of 143027406 is 604720341.

It is a self number, because there is not a number n which added to its sum of digits gives 143027406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143027407) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3972966 + ... + 3973001.

It is an arithmetic number, because the mean of its divisors is an integer number (25824396).

Almost surely, 2143027406 is an apocalyptic number.

143027406 is an abundant number, since it is smaller than the sum of its proper divisors (166865346).

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

143027406 is a wasteful number, since it uses less digits than its factorization.

143027406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945975 (or 7945972 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 143027406 is about 11959.4065906298. The cubic root of 143027406 is about 522.9655577517.

Adding to 143027406 its reverse (604720341), we get a palindrome (747747747).

The spelling of 143027406 in words is "one hundred forty-three million, twenty-seven thousand, four hundred six".

Divisors: 1 2 3 6 9 18 7945967 15891934 23837901 47675802 71513703 143027406