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143442411 = 376830591
BaseRepresentation
bin10001000110011…
…00000111101011
3100222220121222220
420203030013223
5243210124121
622122245123
73361145310
oct1043140753
9328817886
10143442411
1173a73452
12400567a3
1323944188
141509cd07
15c8d66c6
hex88cc1eb

143442411 has 8 divisors (see below), whose sum is σ = 218578944. Its totient is φ = 81967080.

The previous prime is 143442407. The next prime is 143442443. The reversal of 143442411 is 114244341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143442411 - 22 = 143442407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143442401) 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 7 ways as a sum of consecutive naturals, for example, 3415275 + ... + 3415316.

It is an arithmetic number, because the mean of its divisors is an integer number (27322368).

Almost surely, 2143442411 is an apocalyptic number.

143442411 is a deficient number, since it is larger than the sum of its proper divisors (75136533).

143442411 is an equidigital number, since it uses as much as digits as its factorization.

143442411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830601.

The product of its digits is 1536, while the sum is 24.

The square root of 143442411 is about 11976.7445910815. The cubic root of 143442411 is about 523.4708775645.

Adding to 143442411 its reverse (114244341), we get a palindrome (257686752).

The spelling of 143442411 in words is "one hundred forty-three million, four hundred forty-two thousand, four hundred eleven".

Divisors: 1 3 7 21 6830591 20491773 47814137 143442411