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143933 = 314643
BaseRepresentation
bin100011001000111101
321022102212
4203020331
514101213
63030205
71136426
oct431075
9238385
10143933
1199159
126b365
135068a
143a64d
152c9a8
hex2323d

143933 has 4 divisors (see below), whose sum is σ = 148608. Its totient is φ = 139260.

The previous prime is 143909. The next prime is 143947. The reversal of 143933 is 339341.

143933 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143933 - 28 = 143677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143899 and 143908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143953) 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, 2291 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (37152).

2143933 is an apocalyptic number.

It is an amenable number.

143933 is a deficient number, since it is larger than the sum of its proper divisors (4675).

143933 is an equidigital number, since it uses as much as digits as its factorization.

143933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674.

The product of its digits is 972, while the sum is 23.

The square root of 143933 is about 379.3850286978. The cubic root of 143933 is about 52.4066974715.

It can be divided in two parts, 1 and 43933, that added together give a palindrome (43934).

The spelling of 143933 in words is "one hundred forty-three thousand, nine hundred thirty-three".

Divisors: 1 31 4643 143933