| Base | Representation |
|---|---|
| bin | 1111001100011… |
| … | …0110010101000 |
| 3 | 11102220202111020 |
| 4 | 3303012302220 |
| 5 | 112303310213 |
| 6 | 10153532440 |
| 7 | 1402454163 |
| oct | 363066250 |
| 9 | 142822436 |
| 10 | 63728808 |
| 11 | 32a78440 |
| 12 | 19414120 |
| 13 | 10284270 |
| 14 | 866cada |
| 15 | 58dc923 |
| hex | 3cc6ca8 |
63728808 has 128 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 17222400.
The previous prime is 63728789. The next prime is 63728809. The reversal of 63728808 is 80882736.
63728808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×637288082 = 8122721938201728, which contains 22 as substring.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 63728808.
It is not an unprimeable number, because it can be changed into a prime (63728809) 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 31 ways as a sum of consecutive naturals, for example, 106093 + ... + 106691.
It is an arithmetic number, because the mean of its divisors is an integer number (1512000).
Almost surely, 263728808 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 63728808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768000).
63728808 is an abundant number, since it is smaller than the sum of its proper divisors (129807192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
63728808 is a wasteful number, since it uses less digits than its factorization.
63728808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 663 (or 659 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 42.
The square root of 63728808 is about 7983.0325065103. The cubic root of 63728808 is about 399.4342167673.
The spelling of 63728808 in words is "sixty-three million, seven hundred twenty-eight thousand, eight hundred eight".
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