Base | Representation |
---|---|
bin | 10010101000110001… |
… | …000011010010101100 |
3 | 1220122121210100221201 |
4 | 102220301003102230 |
5 | 311440343100022 |
6 | 13105411335244 |
7 | 1305620146354 |
oct | 225061032254 |
9 | 56577710851 |
10 | 20011300012 |
11 | 8539947980 |
12 | 3a658b1524 |
13 | 1b6bb33132 |
14 | d7b9c7b64 |
15 | 7c1c4e127 |
hex | 4a8c434ac |
20011300012 has 48 divisors (see below), whose sum is σ = 39554917920. Its totient is φ = 8774796800.
The previous prime is 20011300009. The next prime is 20011300019. The reversal of 20011300012 is 21000311002.
It is not an unprimeable number, because it can be changed into a prime (20011300019) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623312 + ... + 1635592.
It is an arithmetic number, because the mean of its divisors is an integer number (824060790).
Almost surely, 220011300012 is an apocalyptic number.
20011300012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20011300012 is a deficient number, since it is larger than the sum of its proper divisors (19543617908).
20011300012 is a wasteful number, since it uses less digits than its factorization.
20011300012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13602 (or 13600 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
Adding to 20011300012 its reverse (21000311002), we get a palindrome (41011611014).
It can be divided in two parts, 20011 and 300012, that added together give a palindrome (320023).
The spelling of 20011300012 in words is "twenty billion, eleven million, three hundred thousand, twelve".
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