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20304201344 = 277219170383
BaseRepresentation
bin10010111010001110…
…011000011010000000
31221102000221022001012
4102322032120122000
5313040333420334
613154433300052
71316104602200
oct227216303200
957360838035
1020304201344
11867a212a99
123b27a04628
131bb7716b2b
14da8870400
157dc8099ce
hex4ba398680

20304201344 has 96 divisors (see below), whose sum is σ = 49530628800. Its totient is φ = 8243762688.

The previous prime is 20304201319. The next prime is 20304201377. The reversal of 20304201344 is 44310240302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33977 + ... + 204359.

It is an arithmetic number, because the mean of its divisors is an integer number (515944050).

Almost surely, 220304201344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20304201344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24765314400).

20304201344 is an abundant number, since it is smaller than the sum of its proper divisors (29226427456).

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

20304201344 is a wasteful number, since it uses less digits than its factorization.

20304201344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170430 (or 170411 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20304201344 its reverse (44310240302), we get a palindrome (64614441646).

The spelling of 20304201344 in words is "twenty billion, three hundred four million, two hundred one thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 16 19 28 32 38 49 56 64 76 98 112 128 133 152 196 224 266 304 392 448 532 608 784 896 931 1064 1216 1568 1862 2128 2432 3136 3724 4256 6272 7448 8512 14896 17024 29792 59584 119168 170383 340766 681532 1192681 1363064 2385362 2726128 3237277 4770724 5452256 6474554 8348767 9541448 10904512 12949108 16697534 19082896 21809024 22660939 25898216 33395068 38165792 45321878 51796432 66790136 76331584 90643756 103592864 133580272 152663168 158626573 181287512 207185728 267160544 317253146 362575024 414371456 534321088 634506292 725150048 1068642176 1269012584 1450300096 2538025168 2900600192 5076050336 10152100672 20304201344