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242302143 = 3130162081
BaseRepresentation
bin11100111000100…
…11110010111111
3121212221020001110
432130103302333
5444012132033
640013213103
76001351146
oct1634236277
9555836043
10242302143
11114856206
1269191193
133b278965
142427475d
1516413363
hexe713cbf

242302143 has 8 divisors (see below), whose sum is σ = 323323056. Its totient is φ = 161408000.

The previous prime is 242302141. The next prime is 242302153. The reversal of 242302143 is 341203242.

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 242302143 - 21 = 242302141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242302141) 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, 27138 + ... + 34943.

It is an arithmetic number, because the mean of its divisors is an integer number (40415382).

Almost surely, 2242302143 is an apocalyptic number.

242302143 is a deficient number, since it is larger than the sum of its proper divisors (81020913).

242302143 is a wasteful number, since it uses less digits than its factorization.

242302143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63385.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 242302143 is about 15566.0574006394. The cubic root of 242302143 is about 623.4272074645.

Adding to 242302143 its reverse (341203242), we get a palindrome (583505385).

The spelling of 242302143 in words is "two hundred forty-two million, three hundred two thousand, one hundred forty-three".

Divisors: 1 3 1301 3903 62081 186243 80767381 242302143