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242230211 = 1911268221
BaseRepresentation
bin11100111000000…
…10001111000011
3121212210120101022
432130002033003
5444002331321
640011500055
76000631346
oct1634021703
9555716338
10242230211
11114807163
126915762b
133b251cb2
142425645d
15163ebdab
hexe7023c3

242230211 has 4 divisors (see below), whose sum is σ = 243498624. Its totient is φ = 240961800.

The previous prime is 242230201. The next prime is 242230217. The reversal of 242230211 is 112032242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242230211 - 214 = 242213827 is a prime.

It is a super-2 number, since 2×2422302112 = 117350950242209042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242230211.

It is not an unprimeable number, because it can be changed into a prime (242230217) 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 3 ways as a sum of consecutive naturals, for example, 633920 + ... + 634301.

It is an arithmetic number, because the mean of its divisors is an integer number (60874656).

Almost surely, 2242230211 is an apocalyptic number.

242230211 is a deficient number, since it is larger than the sum of its proper divisors (1268413).

242230211 is a wasteful number, since it uses less digits than its factorization.

242230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268412.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 242230211 is about 15563.7466890206. The cubic root of 242230211 is about 623.3655092837.

Adding to 242230211 its reverse (112032242), we get a palindrome (354262453).

The spelling of 242230211 in words is "two hundred forty-two million, two hundred thirty thousand, two hundred eleven".

Divisors: 1 191 1268221 242230211