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143045423 = 547261509
BaseRepresentation
bin10001000011010…
…11001100101111
3100222011110102122
420201223030233
5243104423143
622105543155
73354603023
oct1041531457
9328143378
10143045423
1173822164
123baa4abb
1323835581
1414dd8383
15c858c68
hex886b32f

143045423 has 4 divisors (see below), whose sum is σ = 143307480. Its totient is φ = 142783368.

The previous prime is 143045407. The next prime is 143045449. The reversal of 143045423 is 324540341.

143045423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324540341 = 2331392877.

It is a cyclic number.

It is not a de Polignac number, because 143045423 - 24 = 143045407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143045392 and 143045401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143045723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130208 + ... + 131301.

It is an arithmetic number, because the mean of its divisors is an integer number (35826870).

Almost surely, 2143045423 is an apocalyptic number.

143045423 is a deficient number, since it is larger than the sum of its proper divisors (262057).

143045423 is an equidigital number, since it uses as much as digits as its factorization.

143045423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262056.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 143045423 is about 11960.1598233468. The cubic root of 143045423 is about 522.9875159556.

Adding to 143045423 its reverse (324540341), we get a palindrome (467585764).

The spelling of 143045423 in words is "one hundred forty-three million, forty-five thousand, four hundred twenty-three".

Divisors: 1 547 261509 143045423