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201232230 = 235171921093
BaseRepresentation
bin10111111111010…
…00111101100110
3112000122122201120
423333220331212
5403003412410
631545034410
74662305613
oct1377507546
9460578646
10201232230
11a3654831
1257485a06
13328c9134
141ca2350a
15129ee570
hexbfe8f66

201232230 has 96 divisors (see below), whose sum is σ = 540190944. Its totient is φ = 47803392.

The previous prime is 201232219. The next prime is 201232231. The reversal of 201232230 is 32232102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201232231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183564 + ... + 184656.

It is an arithmetic number, because the mean of its divisors is an integer number (5626989).

Almost surely, 2201232230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201232230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270095472).

201232230 is an abundant number, since it is smaller than the sum of its proper divisors (338958714).

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

201232230 is a wasteful number, since it uses less digits than its factorization.

201232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 201232230 is about 14185.6346350807. The cubic root of 201232230 is about 586.0021102868.

Adding to 201232230 its reverse (32232102), we get a palindrome (233464332).

The spelling of 201232230 in words is "two hundred one million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 19 30 34 38 51 57 85 95 102 114 170 190 255 285 323 361 510 570 646 722 969 1083 1093 1615 1805 1938 2166 2186 3230 3279 3610 4845 5415 5465 6137 6558 9690 10830 10930 12274 16395 18411 18581 20767 30685 32790 36822 37162 41534 55743 61370 62301 92055 92905 103835 111486 124602 184110 185810 207670 278715 311505 353039 394573 557430 623010 706078 789146 1059117 1183719 1765195 1972865 2118234 2367438 3530390 3945730 5295585 5918595 6707741 10591170 11837190 13415482 20123223 33538705 40246446 67077410 100616115 201232230