Base | Representation |
---|---|
bin | 111001001010010… |
… | …1001001001011001 |
3 | 11221200002012122002 |
4 | 1302110221021121 |
5 | 12412002422131 |
6 | 514153410345 |
7 | 65346564446 |
oct | 16224511131 |
9 | 4850065562 |
10 | 1918014041 |
11 | 8a473a379 |
12 | 4564099b5 |
13 | 2474a0068 |
14 | 142a369cd |
15 | b35ba6cb |
hex | 72529259 |
1918014041 has 2 divisors, whose sum is σ = 1918014042. Its totient is φ = 1918014040.
The previous prime is 1918014037. The next prime is 1918014047. The reversal of 1918014041 is 1404108191.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1908379225 + 9634816 = 43685^2 + 3104^2 .
It is an emirp because it is prime and its reverse (1404108191) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1918014041 - 22 = 1918014037 is a prime.
It is a super-2 number, since 2×19180140412 = 7357555722946299362, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1918013995 and 1918014013.
It is not a weakly prime, because it can be changed into another prime (1918014047) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959007020 + 959007021.
It is an arithmetic number, because the mean of its divisors is an integer number (959007021).
Almost surely, 21918014041 is an apocalyptic number.
It is an amenable number.
1918014041 is a deficient number, since it is larger than the sum of its proper divisors (1).
1918014041 is an equidigital number, since it uses as much as digits as its factorization.
1918014041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1152, while the sum is 29.
The square root of 1918014041 is about 43795.1371843953. The cubic root of 1918014041 is about 1242.4643242432.
The spelling of 1918014041 in words is "one billion, nine hundred eighteen million, fourteen thousand, forty-one".
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