Base | Representation |
---|---|
bin | 110101110111010… |
… | …0011001111110001 |
3 | 11122221212122211100 |
4 | 1223232203033301 |
5 | 12200141140410 |
6 | 455202035013 |
7 | 62534231010 |
oct | 15356431761 |
9 | 4587778740 |
10 | 1807365105 |
11 | 848235177 |
12 | 425348a69 |
13 | 22a59b510 |
14 | 132072a77 |
15 | a8a108c0 |
hex | 6bba33f1 |
1807365105 has 48 divisors (see below), whose sum is σ = 3855720960. Its totient is φ = 762666624.
The previous prime is 1807365103. The next prime is 1807365169. The reversal of 1807365105 is 5015637081.
It is not a de Polignac number, because 1807365105 - 21 = 1807365103 is a prime.
It is a super-2 number, since 2×18073651052 = 6533137245543322050, which contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1807365105.
It is not an unprimeable number, because it can be changed into a prime (1807365103) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216585 + ... + 224774.
It is an arithmetic number, because the mean of its divisors is an integer number (80327520).
Almost surely, 21807365105 is an apocalyptic number.
1807365105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1807365105 is an abundant number, since it is smaller than the sum of its proper divisors (2048355855).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1807365105 is a wasteful number, since it uses less digits than its factorization.
1807365105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 441390 (or 441387 counting only the distinct ones).
The product of its (nonzero) digits is 25200, while the sum is 36.
The square root of 1807365105 is about 42513.1168582121. The cubic root of 1807365105 is about 1218.0972545637.
The spelling of 1807365105 in words is "one billion, eight hundred seven million, three hundred sixty-five thousand, one hundred five".
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