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220142143 = 1372723293
BaseRepresentation
bin11010001111100…
…01101000111111
3120100020101020201
431013301220333
5422324022033
633502224331
75312114554
oct1507615077
9510211221
10220142143
111032a0061
12618850a7
13367ba330
1421346a2b
15144d747d
hexd1f1a3f

220142143 has 8 divisors (see below), whose sum is σ = 237412448. Its totient is φ = 202919904.

The previous prime is 220142141. The next prime is 220142201. The reversal of 220142143 is 341241022.

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

It is a cyclic number.

It is not a de Polignac number, because 220142143 - 21 = 220142141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220142143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220142141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 21097.

It is an arithmetic number, because the mean of its divisors is an integer number (29676556).

Almost surely, 2220142143 is an apocalyptic number.

220142143 is a deficient number, since it is larger than the sum of its proper divisors (17270305).

220142143 is a wasteful number, since it uses less digits than its factorization.

220142143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24033.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 220142143 is about 14837.1878400187. The cubic root of 220142143 is about 603.8110593842.

Adding to 220142143 its reverse (341241022), we get a palindrome (561383165).

It can be divided in two parts, 2201 and 42143, that added together give a palindrome (44344).

The spelling of 220142143 in words is "two hundred twenty million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 13 727 9451 23293 302809 16934011 220142143