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143130323 = 722921027
BaseRepresentation
bin10001000011111…
…11111011010011
3100222022202220002
420201333323103
5243120132243
622111440215
73355405400
oct1041777323
9328282802
10143130323
117387aa26
123bb2606b
13238650cb
141501b2a7
15c873eb8
hex887fed3

143130323 has 6 divisors (see below), whose sum is σ = 166498596. Its totient is φ = 122683092.

The previous prime is 143130313. The next prime is 143130329. The reversal of 143130323 is 323031341.

It is not a de Polignac number, because 143130323 - 24 = 143130307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143130295 and 143130304.

It is not an unprimeable number, because it can be changed into a prime (143130329) 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 5 ways as a sum of consecutive naturals, for example, 1460465 + ... + 1460562.

It is an arithmetic number, because the mean of its divisors is an integer number (27749766).

Almost surely, 2143130323 is an apocalyptic number.

143130323 is a deficient number, since it is larger than the sum of its proper divisors (23368273).

143130323 is an equidigital number, since it uses as much as digits as its factorization.

143130323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921041 (or 2921034 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 143130323 is about 11963.7085805364. The cubic root of 143130323 is about 523.0909629533.

Adding to 143130323 its reverse (323031341), we get a palindrome (466161664).

The spelling of 143130323 in words is "one hundred forty-three million, one hundred thirty thousand, three hundred twenty-three".

Divisors: 1 7 49 2921027 20447189 143130323