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224213142 = 23311205447
BaseRepresentation
bin11010101110100…
…11100010010110
3120121220012121110
431113103202112
5424344310032
634125355450
75361531426
oct1527234226
9517805543
10224213142
1110562071a
1263108b86
13375b42ca
1421ac6486
1514a3d7cc
hexd5d3896

224213142 has 16 divisors (see below), whose sum is σ = 462892032. Its totient is φ = 72326760.

The previous prime is 224213117. The next prime is 224213147. The reversal of 224213142 is 241312422.

It is a super-3 number, since 3×2242131423 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224213147) 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, 602538 + ... + 602909.

It is an arithmetic number, because the mean of its divisors is an integer number (28930752).

Almost surely, 2224213142 is an apocalyptic number.

224213142 is an abundant number, since it is smaller than the sum of its proper divisors (238678890).

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

224213142 is a wasteful number, since it uses less digits than its factorization.

224213142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205483.

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

The square root of 224213142 is about 14973.7484284998. The cubic root of 224213142 is about 607.5103596940.

Adding to 224213142 its reverse (241312422), we get a palindrome (465525564).

The spelling of 224213142 in words is "two hundred twenty-four million, two hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 31 62 93 186 1205447 2410894 3616341 7232682 37368857 74737714 112106571 224213142