Base | Representation |
---|---|
bin | 101111101101000010… |
… | …1110101100011111001 |
3 | 100210102102222022200001 |
4 | 1133122011311203321 |
5 | 3134300430223001 |
6 | 115021201313001 |
7 | 10254431632435 |
oct | 1373205654371 |
9 | 323372868601 |
10 | 102443211001 |
11 | 3a49a58174a |
12 | 17a30035761 |
13 | 9877a47621 |
14 | 4d5b72b9c5 |
15 | 29e8999001 |
hex | 17da1758f9 |
102443211001 has 2 divisors, whose sum is σ = 102443211002. Its totient is φ = 102443211000.
The previous prime is 102443210977. The next prime is 102443211007. The reversal of 102443211001 is 100112344201.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 96522062400 + 5921148601 = 310680^2 + 76949^2 .
It is an emirp because it is prime and its reverse (100112344201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102443211001 - 29 = 102443210489 is a prime.
It is a super-2 number, since 2×1024432110012 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 102443211001.
It is not a weakly prime, because it can be changed into another prime (102443211007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51221605500 + 51221605501.
It is an arithmetic number, because the mean of its divisors is an integer number (51221605501).
Almost surely, 2102443211001 is an apocalyptic number.
It is an amenable number.
102443211001 is a deficient number, since it is larger than the sum of its proper divisors (1).
102443211001 is an equidigital number, since it uses as much as digits as its factorization.
102443211001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 192, while the sum is 19.
Adding to 102443211001 its reverse (100112344201), we get a palindrome (202555555202).
The spelling of 102443211001 in words is "one hundred two billion, four hundred forty-three million, two hundred eleven thousand, one".
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