Base | Representation |
---|---|
bin | 10001001011100110… |
… | …000000110010001111 |
3 | 1202121200101212001112 |
4 | 101023212000302033 |
5 | 300240210000241 |
6 | 12250331202235 |
7 | 1222106322125 |
oct | 211346006217 |
9 | 52550355045 |
10 | 18448125071 |
11 | 7907538462 |
12 | 36aa2a637b |
13 | 1980021a4c |
14 | c7015b915 |
15 | 72e8c61eb |
hex | 44b980c8f |
18448125071 has 2 divisors, whose sum is σ = 18448125072. Its totient is φ = 18448125070.
The previous prime is 18448125067. The next prime is 18448125077. The reversal of 18448125071 is 17052184481.
It is a weak prime.
It is an emirp because it is prime and its reverse (17052184481) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 18448125071 - 22 = 18448125067 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18448125077) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9224062535 + 9224062536.
It is an arithmetic number, because the mean of its divisors is an integer number (9224062536).
Almost surely, 218448125071 is an apocalyptic number.
18448125071 is a deficient number, since it is larger than the sum of its proper divisors (1).
18448125071 is an equidigital number, since it uses as much as digits as its factorization.
18448125071 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 71680, while the sum is 41.
The spelling of 18448125071 in words is "eighteen billion, four hundred forty-eight million, one hundred twenty-five thousand, seventy-one".
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