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20304023202 = 23217394716811
BaseRepresentation
bin10010111010001101…
…101100111010100010
31221102000121020200100
4102322031230322202
5313040312220302
613154425403230
71316103230631
oct227215547242
957360536610
1020304023202
11867a101171
123b27939516
131bb7683a18
14da8825518
157dc7c1d1c
hex4ba36cea2

20304023202 has 48 divisors (see below), whose sum is σ = 46594390752. Its totient is φ = 6367896960.

The previous prime is 20304023197. The next prime is 20304023227. The reversal of 20304023202 is 20232040302.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1199377 + ... + 1216187.

It is an arithmetic number, because the mean of its divisors is an integer number (970716474).

Almost surely, 220304023202 is an apocalyptic number.

20304023202 is an abundant number, since it is smaller than the sum of its proper divisors (26290367550).

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

20304023202 is a wasteful number, since it uses less digits than its factorization.

20304023202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783 (or 20780 counting only the distinct ones).

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

Adding to 20304023202 its reverse (20232040302), we get a palindrome (40536063504).

The spelling of 20304023202 in words is "twenty billion, three hundred four million, twenty-three thousand, two hundred two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 3947 7894 11841 16811 23682 33622 35523 50433 67099 71046 100866 134198 151299 201297 285787 302598 402594 571574 603891 857361 1207782 1714722 2572083 5144166 66353017 132706034 199059051 398118102 597177153 1128001289 1194354306 2256002578 3384003867 6768007734 10152011601 20304023202