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223222142 = 211135991303
BaseRepresentation
bin11010100111000…
…01100101111110
3120120000212012202
431103201211332
5424121102032
634052231502
75350233263
oct1523414576
9516025182
10223222142
11105004110
126290b592
1337328210
142190926a
15148e4d62
hexd4e197e

223222142 has 32 divisors (see below), whose sum is σ = 394329600. Its totient is φ = 93431520.

The previous prime is 223222141. The next prime is 223222151. The reversal of 223222142 is 241222322.

It is a super-3 number, since 3×2232221423 (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 (223222141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170663 + ... + 171965.

It is an arithmetic number, because the mean of its divisors is an integer number (12322800).

Almost surely, 2223222142 is an apocalyptic number.

223222142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

223222142 is a deficient number, since it is larger than the sum of its proper divisors (171107458).

223222142 is a wasteful number, since it uses less digits than its factorization.

223222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928.

The product of its digits is 768, while the sum is 20.

The square root of 223222142 is about 14940.6205359751. The cubic root of 223222142 is about 606.6139924614.

Adding to 223222142 its reverse (241222322), we get a palindrome (464444464).

The spelling of 223222142 in words is "two hundred twenty-three million, two hundred twenty-two thousand, one hundred forty-two".

Divisors: 1 2 11 13 22 26 143 286 599 1198 1303 2606 6589 7787 13178 14333 15574 16939 28666 33878 85657 171314 186329 372658 780497 1560994 8585467 10146461 17170934 20292922 111611071 223222142