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143224105 = 5232173313
BaseRepresentation
bin10001000100101…
…10110100101001
3100222111112112111
420202112310221
5243131132410
622113442321
73356245663
oct1042266451
9328445474
10143224105
1173934432
123bb703a1
13238989bb
1415043533
15c891b8a
hex8896d29

143224105 has 24 divisors (see below), whose sum is σ = 181282248. Its totient is φ = 108615936.

The previous prime is 143224049. The next prime is 143224117. The reversal of 143224105 is 501422341.

It can be written as a sum of positive squares in 4 ways, for example, as 6170256 + 137053849 = 2484^2 + 11707^2 .

It is not a de Polignac number, because 143224105 - 223 = 134835497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457429 + ... + 457741.

It is an arithmetic number, because the mean of its divisors is an integer number (7553427).

Almost surely, 2143224105 is an apocalyptic number.

It is an amenable number.

143224105 is a deficient number, since it is larger than the sum of its proper divisors (38058143).

143224105 is a wasteful number, since it uses less digits than its factorization.

143224105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 143224105 is about 11967.6273755494. The cubic root of 143224105 is about 523.2051847461.

Adding to 143224105 its reverse (501422341), we get a palindrome (644646446).

The spelling of 143224105 in words is "one hundred forty-three million, two hundred twenty-four thousand, one hundred five".

Divisors: 1 5 23 115 173 313 529 865 1565 2645 3979 7199 19895 35995 54149 91517 165577 270745 457585 827885 1245427 6227135 28644821 143224105