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30220022222 = 21317103663797
BaseRepresentation
bin11100001001010000…
…001111000111001110
32220000002022012010022
4130021100033013032
5443342311202342
621514411542142
72116610644025
oct341120170716
986002265108
1030220022222
11118a8461a85
125a3475a952
132b07b3c970
14166975d8bc
15bbd0da9d2
hex70940f1ce

30220022222 has 32 divisors (see below), whose sum is σ = 52190453952. Its totient is φ = 12999780864.

The previous prime is 30220022221. The next prime is 30220022243. The reversal of 30220022222 is 22222002203.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 30220022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220022221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286373 + ... + 377424.

It is an arithmetic number, because the mean of its divisors is an integer number (1630951686).

Almost surely, 230220022222 is an apocalyptic number.

30220022222 is a deficient number, since it is larger than the sum of its proper divisors (21970431730).

30220022222 is a wasteful number, since it uses less digits than its factorization.

30220022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663932.

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

Adding to 30220022222 its reverse (22222002203), we get a palindrome (52442024425).

The spelling of 30220022222 in words is "thirty billion, two hundred twenty million, twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 13 17 26 34 103 206 221 442 1339 1751 2678 3502 22763 45526 663797 1327594 8629361 11284549 17258722 22569098 68371091 136742182 146699137 293398274 888824183 1162308547 1777648366 2324617094 15110011111 30220022222