Base | Representation |
---|---|
bin | 100110101001111… |
… | …001001000100010 |
3 | 1200012022000212221 |
4 | 212221321020202 |
5 | 2312010004010 |
6 | 144203541254 |
7 | 22033203403 |
oct | 4651711042 |
9 | 1605260787 |
10 | 648516130 |
11 | 303085849 |
12 | 16122a82a |
13 | a4484772 |
14 | 621b59aa |
15 | 3be02dda |
hex | 26a79222 |
648516130 has 32 divisors (see below), whose sum is σ = 1186368768. Its totient is φ = 255192000.
The previous prime is 648516097. The next prime is 648516137. The reversal of 648516130 is 31615846.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (648516137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497059 + ... + 498361.
It is an arithmetic number, because the mean of its divisors is an integer number (37074024).
Almost surely, 2648516130 is an apocalyptic number.
648516130 is a deficient number, since it is larger than the sum of its proper divisors (537852638).
648516130 is a wasteful number, since it uses less digits than its factorization.
648516130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2082.
The product of its (nonzero) digits is 17280, while the sum is 34.
The square root of 648516130 is about 25465.9798554856. The cubic root of 648516130 is about 865.5794306794.
The spelling of 648516130 in words is "six hundred forty-eight million, five hundred sixteen thousand, one hundred thirty".
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