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30320202222 = 23210116677779
BaseRepresentation
bin11100001111001110…
…011001000111101110
32220021001210212020200
4130033032121013232
5444043432432342
621532351054330
72122235316012
oct341716310756
986231725220
1030320202222
1111949a66772
125a622113a6
132b2281737b
141678b9a542
15bc6cc894c
hex70f3991ee

30320202222 has 24 divisors (see below), whose sum is σ = 66344208840. Its totient is φ = 10006666800.

The previous prime is 30320202193. The next prime is 30320202229. The reversal of 30320202222 is 22220202303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30320202195 and 30320202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320202229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8337072 + ... + 8340707.

It is an arithmetic number, because the mean of its divisors is an integer number (2764342035).

Almost surely, 230320202222 is an apocalyptic number.

30320202222 is an abundant number, since it is smaller than the sum of its proper divisors (36024006618).

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

30320202222 is a wasteful number, since it uses less digits than its factorization.

30320202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677888 (or 16677885 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 30320202222 its reverse (22220202303), we get a palindrome (52540404525).

The spelling of 30320202222 in words is "thirty billion, three hundred twenty million, two hundred two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 101 202 303 606 909 1818 16677779 33355558 50033337 100066674 150100011 300200022 1684455679 3368911358 5053367037 10106734074 15160101111 30320202222