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2221031230 = 2511271103251
BaseRepresentation
bin1000010001100010…
…0011111100111110
312201210021002001221
42010120203330332
514022040444410
61004220223554
7106016311465
oct20430437476
95653232057
102221031230
11a3a794700
1251b99abba
132951b6282
14170d939dc
15ceec34da
hex84623f3e

2221031230 has 96 divisors (see below), whose sum is σ = 4517420544. Its totient is φ = 785400000.

The previous prime is 2221031203. The next prime is 2221031231. The reversal of 2221031230 is 321301222.

2221031230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221031231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8848605 + ... + 8848855.

It is an arithmetic number, because the mean of its divisors is an integer number (47056464).

Almost surely, 22221031230 is an apocalyptic number.

2221031230 is an abundant number, since it is smaller than the sum of its proper divisors (2296389314).

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

2221031230 is a wasteful number, since it uses less digits than its factorization.

2221031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2221031230 is about 47127.8180059294. The cubic root of 2221031230 is about 1304.7227098834.

Adding to 2221031230 its reverse (321301222), we get a palindrome (2542332452).

The spelling of 2221031230 in words is "two billion, two hundred twenty-one million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 71 103 110 121 142 206 242 251 355 502 515 605 710 781 1030 1133 1210 1255 1562 2266 2510 2761 3905 5522 5665 7313 7810 8591 11330 12463 13805 14626 17182 17821 24926 25853 27610 30371 35642 36565 42955 51706 60742 62315 73130 80443 85910 89105 124630 129265 151855 160886 178210 196031 258530 284383 303710 392062 402215 568766 804430 884873 980155 1421915 1769746 1835563 1960310 2156341 2843830 3128213 3671126 4312682 4424365 6256426 8848730 9177815 10781705 15641065 18355630 20191193 21563410 31282130 40382386 100955965 201911930 222103123 444206246 1110515615 2221031230