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20608317005168 = 242080961897247
BaseRepresentation
bin1001010111110001111110…
…11010100001110101110000
32200222010200001020012101102
410223320333122201311300
510200121313123131133
6111455155150423532
74224621210163244
oct453707732416560
980863601205342
1020608317005168
116625a35767722
12238a043801ba8
13b66482057379
1451363ad28424
1525b109e6b7e8
hex12be3f6a1d70

20608317005168 has 20 divisors (see below), whose sum is σ = 39930533657280. Its totient is φ = 10303663158144.

The previous prime is 20608317005149. The next prime is 20608317005179. The reversal of 20608317005168 is 86150071380602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30615680 + ... + 31281567.

It is an arithmetic number, because the mean of its divisors is an integer number (1996526682864).

Almost surely, 220608317005168 is an apocalyptic number.

It is an amenable number.

20608317005168 is a deficient number, since it is larger than the sum of its proper divisors (19322216652112).

20608317005168 is a wasteful number, since it uses less digits than its factorization.

20608317005168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61918064 (or 61918058 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 20608317005168 in words is "twenty trillion, six hundred eight billion, three hundred seventeen million, five thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 20809 41618 83236 166472 332944 61897247 123794494 247588988 495177976 990355952 1288019812823 2576039625646 5152079251292 10304158502584 20608317005168