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143040404 = 221323199601
BaseRepresentation
bin10001000011010…
…01111110010100
3100222011012112202
420201221332110
5243104243104
622105504032
73354552263
oct1041517624
9328135482
10143040404
1173819411
123baa2018
13238331c0
1414dd65da
15c85751e
hex8869f94

143040404 has 48 divisors (see below), whose sum is σ = 283180800. Its totient is φ = 62726400.

The previous prime is 143040389. The next prime is 143040413. The reversal of 143040404 is 404040341.

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 15 ways as a sum of consecutive naturals, for example, 237704 + ... + 238304.

It is an arithmetic number, because the mean of its divisors is an integer number (5899600).

Almost surely, 2143040404 is an apocalyptic number.

It is an amenable number.

143040404 is a deficient number, since it is larger than the sum of its proper divisors (140140396).

143040404 is a wasteful number, since it uses less digits than its factorization.

143040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143040404 is about 11959.9499998955. The cubic root of 143040404 is about 522.9813992388.

Adding to 143040404 its reverse (404040341), we get a palindrome (547080745).

The spelling of 143040404 in words is "one hundred forty-three million, forty thousand, four hundred four".

Divisors: 1 2 4 13 23 26 46 52 92 199 299 398 598 601 796 1196 1202 2404 2587 4577 5174 7813 9154 10348 13823 15626 18308 27646 31252 55292 59501 119002 119599 179699 238004 239198 359398 478396 718796 1554787 2750777 3109574 5501554 6219148 11003108 35760101 71520202 143040404