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20020011010220 = 2251377000042347
BaseRepresentation
bin1001000110101010001011…
…01001010000100010101100
32121212220010222201011002102
410203111011221100202230
510111001440304311340
6110325022135314232
74134253351553354
oct443250551204254
977786128634072
1020020011010220
116419491327211
1222b401921b978
13b22b57044ca0
144d2d8bbabb64
1524ab76a79215
hex123545a508ac

20020011010220 has 24 divisors (see below), whose sum is σ = 45276024900624. Its totient is φ = 7392004065216.

The previous prime is 20020011010187. The next prime is 20020011010253. The reversal of 20020011010220 is 2201011002002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20020011010187) and next prime (20020011010253).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38500020914 + ... + 38500021433.

It is an arithmetic number, because the mean of its divisors is an integer number (1886501037526).

Almost surely, 220020011010220 is an apocalyptic number.

20020011010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020011010220 is an abundant number, since it is smaller than the sum of its proper divisors (25256013890404).

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

20020011010220 is a wasteful number, since it uses less digits than its factorization.

20020011010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77000042369 (or 77000042367 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20020011010220 its reverse (2201011002002), we get a palindrome (22221022012222).

The spelling of 20020011010220 in words is "twenty trillion, twenty billion, eleven million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 77000042347 154000084694 308000169388 385000211735 770000423470 1001000550511 1540000846940 2002001101022 4004002202044 5005002752555 10010005505110 20020011010220