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223222340 = 225117391373
BaseRepresentation
bin11010100111000…
…01101001000100
3120120000212111002
431103201221010
5424121103330
634052232432
75350233665
oct1523415104
9516025432
10223222340
11105004280
126290b718
1337328333
142190936c
15148e4e45
hexd4e1a44

223222340 has 48 divisors (see below), whose sum is σ = 512447040. Its totient is φ = 81002880.

The previous prime is 223222313. The next prime is 223222357. The reversal of 223222340 is 43222322.

It is a super-3 number, since 3×2232223403 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161894 + ... + 163266.

It is an arithmetic number, because the mean of its divisors is an integer number (10675980).

Almost surely, 2223222340 is an apocalyptic number.

223222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223222340 is an abundant number, since it is smaller than the sum of its proper divisors (289224700).

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

223222340 is a wasteful number, since it uses less digits than its factorization.

223222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 223222340 is about 14940.6271622044. The cubic root of 223222340 is about 606.6141718186.

Adding to 223222340 its reverse (43222322), we get a palindrome (266444662).

The spelling of 223222340 in words is "two hundred twenty-three million, two hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 739 1373 1478 2746 2956 3695 5492 6865 7390 8129 13730 14780 15103 16258 27460 30206 32516 40645 60412 75515 81290 151030 162580 302060 1014647 2029294 4058588 5073235 10146470 11161117 20292940 22322234 44644468 55805585 111611170 223222340