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20065342554 = 23223473073359
BaseRepresentation
bin10010101011111111…
…001101010001011010
31220210101111000101100
4102223333031101122
5312043211430204
613115021532230
71310144411655
oct225377152132
956711430340
1020065342554
1185673a9934
123a7ba14076
131b7a0a557a
14d84c5489c
157c6876a39
hex4abfcd45a

20065342554 has 96 divisors (see below), whose sum is σ = 46495088640. Its totient is φ = 6239271456.

The previous prime is 20065342523. The next prime is 20065342567. The reversal of 20065342554 is 45524356002.

20065342554 is a `hidden beast` number, since 2 + 0 + 0 + 65 + 3 + 42 + 554 = 666.

20065342554 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5971927 + ... + 5975285.

It is an arithmetic number, because the mean of its divisors is an integer number (484323840).

Almost surely, 220065342554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20065342554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23247544320).

20065342554 is an abundant number, since it is smaller than the sum of its proper divisors (26429746086).

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

20065342554 is a wasteful number, since it uses less digits than its factorization.

20065342554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 20065342554 its reverse (45524356002), we get a palindrome (65589698556).

The spelling of 20065342554 in words is "twenty billion, sixty-five million, three hundred forty-two thousand, five hundred fifty-four".

Divisors: 1 2 3 6 9 18 23 46 47 69 94 138 141 207 282 307 414 423 614 846 921 1081 1842 2162 2763 3243 3359 5526 6486 6718 7061 9729 10077 14122 14429 19458 20154 21183 28858 30231 42366 43287 60462 63549 77257 86574 127098 129861 154514 157873 231771 259722 315746 331867 463542 473619 663734 695313 947238 995601 1031213 1390626 1420857 1991202 2062426 2841714 2986803 3093639 3631079 5973606 6187278 7262158 9280917 10893237 18561834 21786474 23717899 32679711 47435798 48467011 65359422 71153697 96934022 142307394 145401033 213461091 290802066 426922182 436203099 872406198 1114741253 2229482506 3344223759 6688447518 10032671277 20065342554