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220302143 = 4142112763
BaseRepresentation
bin11010010000110…
…00101100111111
3120100112111201122
431020120230333
5422344132033
633505501155
75313352205
oct1510305477
9510474648
10220302143
1110339a296
12619417bb
13368450c9
1421389075
1514519a98
hexd218b3f

220302143 has 8 divisors (see below), whose sum is σ = 226229136. Its totient is φ = 214401600.

The previous prime is 220302139. The next prime is 220302149. The reversal of 220302143 is 341203022.

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 220302143 - 22 = 220302139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220302149) 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, 10880 + ... + 23642.

It is an arithmetic number, because the mean of its divisors is an integer number (28278642).

Almost surely, 2220302143 is an apocalyptic number.

220302143 is a deficient number, since it is larger than the sum of its proper divisors (5926993).

220302143 is a wasteful number, since it uses less digits than its factorization.

220302143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 220302143 is about 14842.5787179991. The cubic root of 220302143 is about 603.9573078826.

Adding to 220302143 its reverse (341203022), we get a palindrome (561505165).

The spelling of 220302143 in words is "two hundred twenty million, three hundred two thousand, one hundred forty-three".

Divisors: 1 41 421 12763 17261 523283 5373223 220302143