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143104213 = 720443459
BaseRepresentation
bin10001000011110…
…01100011010101
3100222021110002001
420201321203111
5243113313323
622111115301
73355236310
oct1041714325
9328243061
10143104213
117386234a
123bb12b31
1323856265
1415011977
15c86b3ad
hex88798d5

143104213 has 4 divisors (see below), whose sum is σ = 163547680. Its totient is φ = 122660748.

The previous prime is 143104207. The next prime is 143104223. The reversal of 143104213 is 312401341.

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.

It is not a de Polignac number, because 143104213 - 217 = 142973141 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 (143104223) 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, 10221723 + ... + 10221736.

It is an arithmetic number, because the mean of its divisors is an integer number (40886920).

Almost surely, 2143104213 is an apocalyptic number.

It is an amenable number.

143104213 is a deficient number, since it is larger than the sum of its proper divisors (20443467).

143104213 is an equidigital number, since it uses as much as digits as its factorization.

143104213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20443466.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143104213 is about 11962.6173139493. The cubic root of 143104213 is about 523.0591533983.

Adding to 143104213 its reverse (312401341), we get a palindrome (455505554).

The spelling of 143104213 in words is "one hundred forty-three million, one hundred four thousand, two hundred thirteen".

Divisors: 1 7 20443459 143104213