Base | Representation |
---|---|
bin | 1111000101110111… |
… | …00110010001111101 |
3 | 202220122210111202000 |
4 | 13202323212101331 |
5 | 113043133211110 |
6 | 3415551052513 |
7 | 404531626026 |
oct | 74273462175 |
9 | 22818714660 |
10 | 8102241405 |
11 | 348855a985 |
12 | 16a1511139 |
13 | 9c178cbab |
14 | 56c0bdc4d |
15 | 3264941c0 |
hex | 1e2ee647d |
8102241405 has 32 divisors (see below), whose sum is σ = 14710464000. Its totient is φ = 4229251776.
The previous prime is 8102241403. The next prime is 8102241439. The reversal of 8102241405 is 5041422018.
8102241405 is a `hidden beast` number, since 8 + 10 + 2 + 241 + 405 = 666.
It is not a de Polignac number, because 8102241405 - 21 = 8102241403 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8102241403) 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, 632130 + ... + 644819.
It is an arithmetic number, because the mean of its divisors is an integer number (459702000).
Almost surely, 28102241405 is an apocalyptic number.
It is an amenable number.
8102241405 is a deficient number, since it is larger than the sum of its proper divisors (6608222595).
8102241405 is a wasteful number, since it uses less digits than its factorization.
8102241405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1277010 (or 1277004 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 27.
The square root of 8102241405 is about 90012.4513886829. The cubic root of 8102241405 is about 2008.4840764170.
The spelling of 8102241405 in words is "eight billion, one hundred two million, two hundred forty-one thousand, four hundred five".
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