Base | Representation |
---|---|
bin | 10011110001111000010 |
3 | 1012221001211 |
4 | 2132033002 |
5 | 131220010 |
6 | 21520334 |
7 | 5336410 |
oct | 2361702 |
9 | 1187054 |
10 | 648130 |
11 | 402a4a |
12 | 2730aa |
13 | 199012 |
14 | 12c2b0 |
15 | cc08a |
hex | 9e3c2 |
648130 has 32 divisors (see below), whose sum is σ = 1368576. Its totient is φ = 216384.
The previous prime is 648119. The next prime is 648133. The reversal of 648130 is 31846.
648130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (648133) by changing a digit.
648130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3192 + ... + 3388.
It is an arithmetic number, because the mean of its divisors is an integer number (42768).
2648130 is an apocalyptic number.
648130 is an abundant number, since it is smaller than the sum of its proper divisors (720446).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
648130 is a wasteful number, since it uses less digits than its factorization.
648130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 258.
The product of its (nonzero) digits is 576, while the sum is 22.
The square root of 648130 is about 805.0652147497. The cubic root of 648130 is about 86.5407606353.
Adding to 648130 its reverse (31846), we get a palindrome (679976).
The spelling of 648130 in words is "six hundred forty-eight thousand, one hundred thirty".
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