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30221122132 = 2235321403061
BaseRepresentation
bin11100001001010100…
…011011101001010100
32220000011101001220201
4130021110123221110
5443343101402012
621514451310244
72116623204535
oct341124335124
986004331821
1030221122132
11118a90433a3
125a34bab384
132b081364b6
14166996868c
15bbd256857
hex70951ba54

30221122132 has 12 divisors (see below), whose sum is σ = 53036787636. Its totient is φ = 15067754240.

The previous prime is 30221122093. The next prime is 30221122157. The reversal of 30221122132 is 23122112203.

It can be written as a sum of positive squares in 2 ways, for example, as 18726280336 + 11494841796 = 136844^2 + 107214^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10700119 + ... + 10702942.

It is an arithmetic number, because the mean of its divisors is an integer number (4419732303).

Almost surely, 230221122132 is an apocalyptic number.

It is an amenable number.

30221122132 is a deficient number, since it is larger than the sum of its proper divisors (22815665504).

30221122132 is a wasteful number, since it uses less digits than its factorization.

30221122132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403418 (or 21403416 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30221122132 its reverse (23122112203), we get a palindrome (53343234335).

The spelling of 30221122132 in words is "thirty billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 353 706 1412 21403061 42806122 85612244 7555280533 15110561066 30221122132