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220144143 = 3701104681
BaseRepresentation
bin11010001111100…
…10001000001111
3120100020110222210
431013302020033
5422324103033
633502241503
75312123442
oct1507621017
9510213883
10220144143
111032a160a
1261886293
13367bb20b
1421347659
15144d7d63
hexd1f220f

220144143 has 8 divisors (see below), whose sum is σ = 293947056. Its totient is φ = 146552000.

The previous prime is 220144121. The next prime is 220144153. The reversal of 220144143 is 341441022.

220144143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220144143 - 26 = 220144079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220144103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50238 + ... + 54443.

It is an arithmetic number, because the mean of its divisors is an integer number (36743382).

Almost surely, 2220144143 is an apocalyptic number.

220144143 is a deficient number, since it is larger than the sum of its proper divisors (73802913).

220144143 is a wasteful number, since it uses less digits than its factorization.

220144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105385.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 220144143 is about 14837.2552380823. The cubic root of 220144143 is about 603.8128879278.

Adding to 220144143 its reverse (341441022), we get a palindrome (561585165).

The spelling of 220144143 in words is "two hundred twenty million, one hundred forty-four thousand, one hundred forty-three".

Divisors: 1 3 701 2103 104681 314043 73381381 220144143