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143423 = 722927
BaseRepresentation
bin100011000000111111
321021201222
4203000333
514042143
63023555
71135100
oct430077
9237658
10143423
1198835
126abbb
1350387
143a3a7
152c768
hex2303f

143423 has 6 divisors (see below), whose sum is σ = 166896. Its totient is φ = 122892.

The previous prime is 143419. The next prime is 143443. The reversal of 143423 is 324341.

143423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143423 - 22 = 143419 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1415 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (27816).

2143423 is an apocalyptic number.

143423 is a deficient number, since it is larger than the sum of its proper divisors (23473).

143423 is an equidigital number, since it uses as much as digits as its factorization.

143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941 (or 2934 counting only the distinct ones).

The product of its digits is 288, while the sum is 17.

The square root of 143423 is about 378.7122918523. The cubic root of 143423 is about 52.3447264019.

Adding to 143423 its reverse (324341), we get a palindrome (467764).

The spelling of 143423 in words is "one hundred forty-three thousand, four hundred twenty-three", and thus it is an iban number.

Divisors: 1 7 49 2927 20489 143423