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20110020000000 = 28357747881
BaseRepresentation
bin1001001001010001110101…
…00110010011100100000000
32122012111110212111120212120
410210220322212103210000
510113440310110000000
6110434225440324240
74143621020421240
oct444507246234400
978174425446776
1020110020000000
116453680028477
122309559013680
13b2b49c994058
144d7489d69b20
1524d193ace6a0
hex124a3a993900

20110020000000 has 576 divisors, whose sum is σ = 76461373008384. Its totient is φ = 4596480000000.

The previous prime is 20110019999983. The next prime is 20110020000047. The reversal of 20110020000000 is 2001102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 419976060 + ... + 420023940.

Almost surely, 220110020000000 is an apocalyptic number.

20110020000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110020000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38230686504192).

20110020000000 is an abundant number, since it is smaller than the sum of its proper divisors (56351353008384).

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

20110020000000 is an frugal number, since it uses more digits than its factorization.

20110020000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47942 (or 47898 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20110020000000 its reverse (2001102), we get a palindrome (20110022001102).

The spelling of 20110020000000 in words is "twenty trillion, one hundred ten billion, twenty million", and thus it is an aban number.