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20304244122 = 2311383297289
BaseRepresentation
bin10010111010001110…
…100010110110011010
31221102001000110201120
4102322032202312122
5313040341302442
613154434230110
71316105141001
oct227216426632
957361013646
1020304244122
11867a242148
123b27a25336
131bb7730446
14da8881c38
157dc8174ec
hex4ba3a2d9a

20304244122 has 16 divisors (see below), whose sum is σ = 40612192320. Its totient is φ = 6767464032.

The previous prime is 20304243943. The next prime is 20304244133. The reversal of 20304244122 is 22144240302.

It is a junction number, because it is equal to n+sod(n) for n = 20304244092 and 20304244101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80347 + ... + 216942.

It is an arithmetic number, because the mean of its divisors is an integer number (2538262020).

Almost surely, 220304244122 is an apocalyptic number.

20304244122 is an abundant number, since it is smaller than the sum of its proper divisors (20307948198).

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

20304244122 is a wasteful number, since it uses less digits than its factorization.

20304244122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308677.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20304244122 its reverse (22144240302), we get a palindrome (42448484424).

The spelling of 20304244122 in words is "twenty billion, three hundred four million, two hundred forty-four thousand, one hundred twenty-two".

Divisors: 1 2 3 6 11383 22766 34149 68298 297289 594578 891867 1783734 3384040687 6768081374 10152122061 20304244122