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20112110132130 = 23251713145170021
BaseRepresentation
bin1001001001010101101110…
…01011100001101110100010
32122012200212112110022010200
410210222313023201232202
510114004100143212010
6110435213103210030
74144023560306022
oct444526713415642
978180775408120
1020112110132130
1164545529366a5
122309a40ba6916
13b2b743a08523
144d76077a7a82
1524d267347cc0
hex124ab72e1ba2

20112110132130 has 48 divisors (see below), whose sum is σ = 55367456132664. Its totient is φ = 5047745287680.

The previous prime is 20112110132129. The next prime is 20112110132171. The reversal of 20112110132130 is 3123101121102.

20112110132130 is a `hidden beast` number, since 201 + 1 + 2 + 110 + 1 + 321 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14785416922761 + 5326693209369 = 3845181^2 + 2307963^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6572583481 + ... + 6572586540.

Almost surely, 220112110132130 is an apocalyptic number.

20112110132130 is an abundant number, since it is smaller than the sum of its proper divisors (35255346000534).

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

20112110132130 is a wasteful number, since it uses less digits than its factorization.

20112110132130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13145170051 (or 13145170048 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20112110132130 its reverse (3123101121102), we get a palindrome (23235211253232).

The spelling of 20112110132130 in words is "twenty trillion, one hundred twelve billion, one hundred ten million, one hundred thirty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 13145170021 26290340042 39435510063 65725850105 78871020126 118306530189 131451700210 197177550315 223467890357 236613060378 394355100630 446935780714 591532650945 670403671071 1117339451785 1183065301890 1340807342142 2011211013213 2234678903570 3352018355355 4022422026426 6704036710710 10056055066065 20112110132130