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1992717475168 = 25741216977077
BaseRepresentation
bin11100111111110111001…
…101111001110101100000
321001111112220111020222011
4130333313031321311200
5230122041133201133
64123235231122304
7263653253031160
oct34776715716540
97044486436864
101992717475168
116a911a079122
12282251073394
13115bb286b794
146c63b5cc5a0
1536c7d9a76cd
hex1cff7379d60

1992717475168 has 48 divisors (see below), whose sum is σ = 4592970787104. Its totient is φ = 833191971840.

The previous prime is 1992717475163. The next prime is 1992717475193. The reversal of 1992717475168 is 8615747172991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992717475163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108479355 + ... + 108497722.

It is an arithmetic number, because the mean of its divisors is an integer number (95686891398).

Almost surely, 21992717475168 is an apocalyptic number.

It is an amenable number.

1992717475168 is an abundant number, since it is smaller than the sum of its proper divisors (2600253311936).

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

1992717475168 is a wasteful number, since it uses less digits than its factorization.

1992717475168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216977135 (or 216977127 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 67.

The spelling of 1992717475168 in words is "one trillion, nine hundred ninety-two billion, seven hundred seventeen million, four hundred seventy-five thousand, one hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 41 56 82 112 164 224 287 328 574 656 1148 1312 2296 4592 9184 216977077 433954154 867908308 1518839539 1735816616 3037679078 3471633232 6075358156 6943266464 8896060157 12150716312 17792120314 24301432624 35584240628 48602865248 62272421099 71168481256 124544842198 142336962512 249089684396 284673925024 498179368792 996358737584 1992717475168