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22333230 = 23252310789
BaseRepresentation
bin101010100110…
…0011100101110
31120000122102200
41111030130232
521204130410
62114402330
7360554313
oct125143456
946018380
1022333230
1111674317
1275903a6
13481c43a
142d74d0a
151e623c0
hex154c72e

22333230 has 48 divisors (see below), whose sum is σ = 60596640. Its totient is φ = 5696064.

The previous prime is 22333217. The next prime is 22333231. The reversal of 22333230 is 3233322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22333231) 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 23 ways as a sum of consecutive naturals, for example, 3325 + ... + 7464.

It is an arithmetic number, because the mean of its divisors is an integer number (1262430).

Almost surely, 222333230 is an apocalyptic number.

22333230 is an abundant number, since it is smaller than the sum of its proper divisors (38263410).

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

22333230 is a wasteful number, since it uses less digits than its factorization.

22333230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 22333230 is about 4725.8046933829. The cubic root of 22333230 is about 281.6115823485.

Adding to 22333230 its reverse (3233322), we get a palindrome (25566552).

The spelling of 22333230 in words is "twenty-two million, three hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 10789 21578 32367 53945 64734 97101 107890 161835 194202 248147 323670 485505 496294 744441 971010 1240735 1488882 2233323 2481470 3722205 4466646 7444410 11166615 22333230