Base | Representation |
---|---|
bin | 100000000100… |
… | …000010001010 |
3 | 120211000200010 |
4 | 200010002022 |
5 | 4122431010 |
6 | 500052350 |
7 | 131304516 |
oct | 40040212 |
9 | 16730603 |
10 | 8405130 |
11 | 4820998 |
12 | 29940b6 |
13 | 1983966 |
14 | 118b146 |
15 | b10620 |
hex | 80408a |
8405130 has 32 divisors (see below), whose sum is σ = 20248704. Its totient is φ = 2232896.
The previous prime is 8405101. The next prime is 8405149. The reversal of 8405130 is 315048.
It is a junction number, because it is equal to n+sod(n) for n = 8405097 and 8405106.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14812 + ... + 15368.
It is an arithmetic number, because the mean of its divisors is an integer number (632772).
Almost surely, 28405130 is an apocalyptic number.
8405130 is an abundant number, since it is smaller than the sum of its proper divisors (11843574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8405130 is a wasteful number, since it uses less digits than its factorization.
8405130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1070.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 8405130 is about 2899.1602232371. The cubic root of 8405130 is about 203.3206447933.
The spelling of 8405130 in words is "eight million, four hundred five thousand, one hundred thirty".
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