Base | Representation |
---|---|
bin | 11111001111100010011001 |
3 | 120102002201020 |
4 | 133033202121 |
5 | 4044040410 |
6 | 451313053 |
7 | 126420600 |
oct | 37174231 |
9 | 16362636 |
10 | 8190105 |
11 | 4694390 |
12 | 28ab789 |
13 | 1909b21 |
14 | 1132a37 |
15 | abba70 |
hex | 7cf899 |
8190105 has 48 divisors (see below), whose sum is σ = 16645824. Its totient is φ = 3400320.
The previous prime is 8190097. The next prime is 8190113. The reversal of 8190105 is 5010918.
8190105 = T518 + T519 + ... + T572.
It is an interprime number because it is at equal distance from previous prime (8190097) and next prime (8190113).
It is not a de Polignac number, because 8190105 - 23 = 8190097 is a prime.
It is a super-2 number, since 2×81901052 = 134155639822050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7579 + ... + 8591.
It is an arithmetic number, because the mean of its divisors is an integer number (346788).
Almost surely, 28190105 is an apocalyptic number.
It is an amenable number.
8190105 is an abundant number, since it is smaller than the sum of its proper divisors (8455719).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8190105 is a wasteful number, since it uses less digits than its factorization.
8190105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1046 (or 1039 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 24.
The square root of 8190105 is about 2861.8359491767. The cubic root of 8190105 is about 201.5718228366.
The spelling of 8190105 in words is "eight million, one hundred ninety thousand, one hundred five".
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