Base | Representation |
---|---|
bin | 10000110101011010… |
… | …000010110110100001 |
3 | 1201122201222022020111 |
4 | 100311122002312201 |
5 | 244004411422212 |
6 | 12145353011321 |
7 | 1206636344002 |
oct | 206532026641 |
9 | 51581868214 |
10 | 18075889057 |
11 | 7736405a96 |
12 | 36056b3b41 |
13 | 1920b81755 |
14 | c369431a9 |
15 | 70bd98ea7 |
hex | 435682da1 |
18075889057 has 2 divisors, whose sum is σ = 18075889058. Its totient is φ = 18075889056.
The previous prime is 18075889031. The next prime is 18075889093. The reversal of 18075889057 is 75098857081.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18005345856 + 70543201 = 134184^2 + 8399^2 .
It is a cyclic number.
It is not a de Polignac number, because 18075889057 - 211 = 18075887009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18075888992 and 18075889010.
It is not a weakly prime, because it can be changed into another prime (18075889157) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037944528 + 9037944529.
It is an arithmetic number, because the mean of its divisors is an integer number (9037944529).
Almost surely, 218075889057 is an apocalyptic number.
It is an amenable number.
18075889057 is a deficient number, since it is larger than the sum of its proper divisors (1).
18075889057 is an equidigital number, since it uses as much as digits as its factorization.
18075889057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5644800, while the sum is 58.
The spelling of 18075889057 in words is "eighteen billion, seventy-five million, eight hundred eighty-nine thousand, fifty-seven".
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