Base | Representation |
---|---|
bin | 1111001111110… |
… | …0010011110010 |
3 | 11110022220012010 |
4 | 3303330103302 |
5 | 112332314033 |
6 | 10202343350 |
7 | 1404356241 |
oct | 363742362 |
9 | 143286163 |
10 | 63948018 |
11 | 33108102 |
12 | 194bab56 |
13 | 1032cc84 |
14 | 86c8958 |
15 | 5932863 |
hex | 3cfc4f2 |
63948018 has 8 divisors (see below), whose sum is σ = 127896048. Its totient is φ = 21316004.
The previous prime is 63947963. The next prime is 63948019. The reversal of 63948018 is 81084936.
It is a sphenic number, since it is the product of 3 distinct primes.
63948018 is an admirable number.
It is a super-2 number, since 2×639480182 = 8178698012256648, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (63948019) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5328996 + ... + 5329007.
It is an arithmetic number, because the mean of its divisors is an integer number (15987006).
Almost surely, 263948018 is an apocalyptic number.
63948018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
63948018 is a wasteful number, since it uses less digits than its factorization.
63948018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10658008.
The product of its (nonzero) digits is 41472, while the sum is 39.
The square root of 63948018 is about 7996.7504650327. The cubic root of 63948018 is about 399.8916748335.
The spelling of 63948018 in words is "sixty-three million, nine hundred forty-eight thousand, eighteen".
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