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20110122102008 = 236433909432757
BaseRepresentation
bin1001001001010010000001…
…01011110010110011111000
32122012111201222121220111102
410210221000223302303320
510113441012224231013
6110434243524550532
74143623400316601
oct444510053626370
978174658556442
1020110122102008
1164537227251a4
122309587252448
13b2b4b7b92543
144d7499746da8
1524d19ca4bd58
hex124a40af2cf8

20110122102008 has 16 divisors (see below), whose sum is σ = 37765120442280. Its totient is φ = 10039423317408.

The previous prime is 20110122102001. The next prime is 20110122102067. The reversal of 20110122102008 is 80020122101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110122102001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954711235 + ... + 1954721522.

Almost surely, 220110122102008 is an apocalyptic number.

It is an amenable number.

20110122102008 is a deficient number, since it is larger than the sum of its proper divisors (17654998340272).

20110122102008 is a wasteful number, since it uses less digits than its factorization.

20110122102008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909433406 (or 3909433402 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 20110122102008 in words is "twenty trillion, one hundred ten billion, one hundred twenty-two million, one hundred two thousand, eight".

Divisors: 1 2 4 8 643 1286 2572 5144 3909432757 7818865514 15637731028 31275462056 2513765262751 5027530525502 10055061051004 20110122102008