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163055490368 = 2631121767531
BaseRepresentation
bin1001011111011011011…
…1010101010101000000
3120120212121200010210212
42113312313111111000
510132414201142433
6202523501013252
714531444541251
oct2276667252500
9516777603725
10163055490368
1163173634311
1227726b54228
13124b72ac5a4
147c6b642b28
154394d42d48
hex25f6dd5540

163055490368 has 56 divisors (see below), whose sum is σ = 334280158464. Its totient is φ = 78831820800.

The previous prime is 163055490359. The next prime is 163055490379. The reversal of 163055490368 is 863094550361.

It is a happy number.

It is a congruent number.

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, 2380763 + ... + 2448293.

It is an arithmetic number, because the mean of its divisors is an integer number (5969288544).

Almost surely, 2163055490368 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 163055490368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167140079232).

163055490368 is an abundant number, since it is smaller than the sum of its proper divisors (171224668096).

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

163055490368 is a wasteful number, since it uses less digits than its factorization.

163055490368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68791 (or 68781 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 163055490368 in words is "one hundred sixty-three billion, fifty-five million, four hundred ninety thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 31 32 62 64 124 248 496 992 1217 1984 2434 4868 9736 19472 37727 38944 67531 75454 77888 135062 150908 270124 301816 540248 603632 1080496 1207264 2093461 2160992 2414528 4186922 4321984 8373844 16747688 33495376 66990752 82185227 133981504 164370454 328740908 657481816 1314963632 2547742037 2629927264 5095484074 5259854528 10190968148 20381936296 40763872592 81527745184 163055490368