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143304023 = 197542317
BaseRepresentation
bin10001000101010…
…10010101010111
3100222122121011102
420202222111113
5243141212043
622115300315
73360030662
oct1042522527
9328577142
10143304023
1173989485
123bbaa69b
13238c61a5
14150646d9
15c8aa6b8
hex88aa557

143304023 has 4 divisors (see below), whose sum is σ = 150846360. Its totient is φ = 135761688.

The previous prime is 143304013. The next prime is 143304047. The reversal of 143304023 is 320403341.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 143304023 - 26 = 143303959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143303986 and 143304004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143304013) 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, 3771140 + ... + 3771177.

It is an arithmetic number, because the mean of its divisors is an integer number (37711590).

Almost surely, 2143304023 is an apocalyptic number.

143304023 is a deficient number, since it is larger than the sum of its proper divisors (7542337).

143304023 is an equidigital number, since it uses as much as digits as its factorization.

143304023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542336.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 143304023 is about 11970.9658340503. The cubic root of 143304023 is about 523.3024815364.

Adding to 143304023 its reverse (320403341), we get a palindrome (463707364).

The spelling of 143304023 in words is "one hundred forty-three million, three hundred four thousand, twenty-three".

Divisors: 1 19 7542317 143304023