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22210230 = 2357229521
BaseRepresentation
bin101010010111…
…0011010110110
31112210101201010
41110232122312
521141211410
62112013050
7356532600
oct124563266
945711633
1022210230
111159a969
127531186
1347a8463
142d42170
151e3ac20
hex152e6b6

22210230 has 96 divisors (see below), whose sum is σ = 64268640. Its totient is φ = 4892160.

The previous prime is 22210213. The next prime is 22210267. The reversal of 22210230 is 3201222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42370 + ... + 42890.

It is an arithmetic number, because the mean of its divisors is an integer number (669465).

Almost surely, 222210230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22210230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32134320).

22210230 is an abundant number, since it is smaller than the sum of its proper divisors (42058410).

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

22210230 is a wasteful number, since it uses less digits than its factorization.

22210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22210230 is about 4712.7730690115. The cubic root of 22210230 is about 281.0936395075.

Adding to 22210230 its reverse (3201222), we get a palindrome (25411452).

The spelling of 22210230 in words is "twenty-two million, two hundred ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 49 58 70 87 98 105 145 147 174 203 210 245 290 294 406 435 490 521 609 735 870 1015 1042 1218 1421 1470 1563 2030 2605 2842 3045 3126 3647 4263 5210 6090 7105 7294 7815 8526 10941 14210 15109 15630 18235 21315 21882 25529 30218 36470 42630 45327 51058 54705 75545 76587 90654 105763 109410 127645 151090 153174 211526 226635 255290 317289 382935 453270 528815 634578 740341 765870 1057630 1480682 1586445 2221023 3172890 3701705 4442046 7403410 11105115 22210230