Base | Representation |
---|---|
bin | 11000100111111101… |
… | …01100001101100100 |
3 | 1021010022221211000220 |
4 | 30103332230031210 |
5 | 204033321244022 |
6 | 10023452404340 |
7 | 645415010244 |
oct | 142376541544 |
9 | 37108854026 |
10 | 13220103012 |
11 | 5674449076 |
12 | 268b4766b0 |
13 | 1328b7727c |
14 | 8d5aa1b24 |
15 | 52592c85c |
hex | 313fac364 |
13220103012 has 24 divisors (see below), whose sum is σ = 30859080000. Its totient is φ = 4404962016.
The previous prime is 13220102981. The next prime is 13220103019. The reversal of 13220103012 is 21030102231.
It is a super-2 number, since 2×132201030122 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13220102982 and 13220103000.
It is not an unprimeable number, because it can be changed into a prime (13220103019) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185512 + ... + 246687.
It is an arithmetic number, because the mean of its divisors is an integer number (1285795000).
Almost surely, 213220103012 is an apocalyptic number.
13220103012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13220103012 is an abundant number, since it is smaller than the sum of its proper divisors (17638976988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13220103012 is a wasteful number, since it uses less digits than its factorization.
13220103012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 434755 (or 434753 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 13220103012 its reverse (21030102231), we get a palindrome (34250205243).
The spelling of 13220103012 in words is "thirteen billion, two hundred twenty million, one hundred three thousand, twelve".
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