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30222202220 = 2257716075009
BaseRepresentation
bin11100001001011000…
…100011010101101100
32220000020101221111222
4130021120203111230
5443343340432340
621514530402512
72116635323510
oct341130432554
986006357458
1030222202220
11118a9710931
125a35430438
132b08423cc2
141669b6a140
15bbd3bb8b5
hex70962356c

30222202220 has 96 divisors (see below), whose sum is σ = 73690767360. Its totient is φ = 10197089280.

The previous prime is 30222202207. The next prime is 30222202223. The reversal of 30222202220 is 2220222203.

It is not an unprimeable number, because it can be changed into a prime (30222202223) 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, 6031076 + ... + 6036084.

It is an arithmetic number, because the mean of its divisors is an integer number (767612160).

Almost surely, 230222202220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30222202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36845383680).

30222202220 is an abundant number, since it is smaller than the sum of its proper divisors (43468565140).

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

30222202220 is a wasteful number, since it uses less digits than its factorization.

30222202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 30222202220 its reverse (2220222203), we get a palindrome (32442424423).

The spelling of 30222202220 in words is "thirty billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 71 140 142 284 355 497 607 710 994 1214 1420 1988 2428 2485 3035 4249 4970 5009 6070 8498 9940 10018 12140 16996 20036 21245 25045 35063 42490 43097 50090 70126 84980 86194 100180 140252 172388 175315 215485 301679 350630 355639 430970 603358 701260 711278 861940 1206716 1422556 1508395 1778195 2489473 3016790 3040463 3556390 4978946 6033580 6080926 7112780 9957892 12161852 12447365 15202315 21283241 24894730 30404630 42566482 49789460 60809260 85132964 106416205 212832410 215872873 425664820 431745746 863491492 1079364365 1511110111 2158728730 3022220222 4317457460 6044440444 7555550555 15111101110 30222202220