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30201222220 = 22513139835673
BaseRepresentation
bin11100001000001000…
…100001010001001100
32212221202221001100221
4130020020201101030
5443323003102340
621512501001124
72116262103361
oct341010412114
985852831327
1030201222220
1111898891294
125a2a3b31a4
132b03c897c0
141667068468
15bbb62544a
hex70822144c

30201222220 has 48 divisors (see below), whose sum is σ = 68792683680. Its totient is φ = 11070982656.

The previous prime is 30201222203. The next prime is 30201222221. The reversal of 30201222220 is 2222210203.

It is a super-2 number, since 2×302012222202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30201222194 and 30201222203.

It is not an unprimeable number, because it can be changed into a prime (30201222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381697 + ... + 453976.

It is an arithmetic number, because the mean of its divisors is an integer number (1433180910).

Almost surely, 230201222220 is an apocalyptic number.

It is an amenable number.

30201222220 is an abundant number, since it is smaller than the sum of its proper divisors (38591461460).

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

30201222220 is a wasteful number, since it uses less digits than its factorization.

30201222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835834 (or 835832 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30201222220 its reverse (2222210203), we get a palindrome (32423432423).

The spelling of 30201222220 in words is "thirty billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 139 260 278 556 695 1390 1807 2780 3614 7228 9035 18070 36140 835673 1671346 3342692 4178365 8356730 10863749 16713460 21727498 43454996 54318745 108637490 116158547 217274980 232317094 464634188 580792735 1161585470 1510061111 2323170940 3020122222 6040244444 7550305555 15100611110 30201222220