Base | Representation |
---|---|
bin | 10001000000011001… |
… | …100010110010100001 |
3 | 1202010120222201020120 |
4 | 101000121202302201 |
5 | 244344114311410 |
6 | 12215541430453 |
7 | 1214336022645 |
oct | 210031426241 |
9 | 52116881216 |
10 | 18260307105 |
11 | 7820515aa7 |
12 | 365740b429 |
13 | 1950141561 |
14 | c5322ac25 |
15 | 71d176570 |
hex | 440662ca1 |
18260307105 has 32 divisors (see below), whose sum is σ = 31052835840. Its totient is φ = 9136670400.
The previous prime is 18260307103. The next prime is 18260307113. The reversal of 18260307105 is 50170306281.
It is not a de Polignac number, because 18260307105 - 21 = 18260307103 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18260307101) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281671 + ... + 340380.
It is an arithmetic number, because the mean of its divisors is an integer number (970401120).
Almost surely, 218260307105 is an apocalyptic number.
18260307105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18260307105 is a deficient number, since it is larger than the sum of its proper divisors (12792528735).
18260307105 is a wasteful number, since it uses less digits than its factorization.
18260307105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 622181.
The product of its (nonzero) digits is 10080, while the sum is 33.
The spelling of 18260307105 in words is "eighteen billion, two hundred sixty million, three hundred seven thousand, one hundred five".
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