Base | Representation |
---|---|
bin | 1001001111101101011101… |
… | …01111111001010011000100 |
3 | 2122222121220011221111221000 |
4 | 10213312232233321103010 |
5 | 10131100403033044022 |
6 | 111123534334053300 |
7 | 4165603300435224 |
oct | 447665657712304 |
9 | 78877804844830 |
10 | 20331012003012 |
11 | 652937427a197 |
12 | 234435294a230 |
13 | b4628b058089 |
14 | 504051d9c084 |
15 | 253cc9e216ac |
hex | 127daebf94c4 |
20331012003012 has 48 divisors (see below), whose sum is σ = 52710299913600. Its totient is φ = 6776969441760.
The previous prime is 20331012002963. The next prime is 20331012003013. The reversal of 20331012003012 is 21030021013302.
20331012003012 is a `hidden beast` number, since 20 + 331 + 0 + 12 + 0 + 0 + 301 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20331012003013) 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, 29325937 + ... + 30011207.
It is an arithmetic number, because the mean of its divisors is an integer number (1098131248200).
Almost surely, 220331012003012 is an apocalyptic number.
It is an amenable number.
20331012003012 is an abundant number, since it is smaller than the sum of its proper divisors (32379287910588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20331012003012 is a wasteful number, since it uses less digits than its factorization.
20331012003012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 959993 (or 959985 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 20331012003012 its reverse (21030021013302), we get a palindrome (41361033016314).
The spelling of 20331012003012 in words is "twenty trillion, three hundred thirty-one billion, twelve million, three thousand, twelve".
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