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143324213 = 187176603
BaseRepresentation
bin10001000101011…
…11010000110101
3100222200121212012
420202233100311
5243142333323
622115534005
73360143564
oct1042572065
9328617765
10143324213
11739a266a
123bbba305
1323902436
141506bbdb
15c8b1678
hex88af435

143324213 has 4 divisors (see below), whose sum is σ = 143402688. Its totient is φ = 143245740.

The previous prime is 143324171. The next prime is 143324219. The reversal of 143324213 is 312423341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312423341 = 1312384911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143324213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143324219) 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 3 ways as a sum of consecutive naturals, for example, 36431 + ... + 40172.

It is an arithmetic number, because the mean of its divisors is an integer number (35850672).

Almost surely, 2143324213 is an apocalyptic number.

It is an amenable number.

143324213 is a deficient number, since it is larger than the sum of its proper divisors (78475).

143324213 is an equidigital number, since it uses as much as digits as its factorization.

143324213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78474.

The product of its digits is 1728, while the sum is 23.

The square root of 143324213 is about 11971.8090947024. The cubic root of 143324213 is about 523.3270562849.

Adding to 143324213 its reverse (312423341), we get a palindrome (455747554).

The spelling of 143324213 in words is "one hundred forty-three million, three hundred twenty-four thousand, two hundred thirteen".

Divisors: 1 1871 76603 143324213