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230310201221 = 3741714574679
BaseRepresentation
bin1101011001111110001…
…1101100011110000101
3211000110201021102221122
43112133203230132011
512233133402414341
6253445242523325
722432205260412
oct3263743543605
9730421242848
10230310201221
1189746116a81
1238776506545
1318944a44399
14b20b7d7109
155ece42494b
hex359f8ec785

230310201221 has 32 divisors (see below), whose sum is σ = 246306977280. Its totient is φ = 215023334400.

The previous prime is 230310201169. The next prime is 230310201223. The reversal of 230310201221 is 122102013032.

It is a cyclic number.

It is not a de Polignac number, because 230310201221 - 218 = 230309939077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230310201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230310201223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49219760 + ... + 49224438.

It is an arithmetic number, because the mean of its divisors is an integer number (7697093040).

Almost surely, 2230310201221 is an apocalyptic number.

It is an amenable number.

230310201221 is a deficient number, since it is larger than the sum of its proper divisors (15996776059).

230310201221 is a wasteful number, since it uses less digits than its factorization.

230310201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 230310201221 its reverse (122102013032), we get a palindrome (352412214253).

The spelling of 230310201221 in words is "two hundred thirty billion, three hundred ten million, two hundred one thousand, two hundred twenty-one".

Divisors: 1 37 41 71 457 1517 2627 2911 4679 16909 18737 32447 107707 173123 191839 332209 693269 1200539 1330327 2138303 7098043 12291733 13620569 49222099 79117211 87670423 151819513 503961053 3243805651 5617321981 6224600033 230310201221