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242316220 = 2256722699
BaseRepresentation
bin11100111000101…
…11001110111100
3121212221221100211
432130113032330
5444013104340
640013402204
76001440166
oct1634271674
9555857324
10242316220
11114865843
1269199364
133b2821a3
1424279936
15164175ea
hexe7173bc

242316220 has 36 divisors (see below), whose sum is σ = 516763800. Its totient is φ = 95444448.

The previous prime is 242316211. The next prime is 242316227. The reversal of 242316220 is 22613242.

It is a junction number, because it is equal to n+sod(n) for n = 242316191 and 242316200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242316227) 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 11 ways as a sum of consecutive naturals, for example, 88431 + ... + 91129.

It is an arithmetic number, because the mean of its divisors is an integer number (14354550).

Almost surely, 2242316220 is an apocalyptic number.

242316220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242316220 is an abundant number, since it is smaller than the sum of its proper divisors (274447580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242316220 is a wasteful number, since it uses less digits than its factorization.

242316220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 242316220 is about 15566.5095638040. The cubic root of 242316220 is about 623.4392802905.

Adding to 242316220 its reverse (22613242), we get a palindrome (264929462).

The spelling of 242316220 in words is "two hundred forty-two million, three hundred sixteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 2699 4489 5398 8978 10796 13495 17956 22445 26990 44890 53980 89780 180833 361666 723332 904165 1808330 3616660 12115811 24231622 48463244 60579055 121158110 242316220