Base | Representation |
---|---|
bin | 1000001101000… |
… | …11110101001000 |
3 | 11210111211221021 |
4 | 10012203311020 |
5 | 120110002423 |
6 | 10455122224 |
7 | 1464014101 |
oct | 406436510 |
9 | 153454837 |
10 | 68828488 |
11 | 35940953 |
12 | 1b073374 |
13 | 1134b521 |
14 | 91d93a8 |
15 | 609895d |
hex | 41a3d48 |
68828488 has 32 divisors (see below), whose sum is σ = 137728800. Its totient is φ = 32151168.
The previous prime is 68828483. The next prime is 68828521. The reversal of 68828488 is 88482886.
It is a happy number.
It is a super-2 number, since 2×688284882 = 9474721520732288, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68828483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7995 + ... + 14197.
It is an arithmetic number, because the mean of its divisors is an integer number (4304025).
Almost surely, 268828488 is an apocalyptic number.
It is an amenable number.
68828488 is an abundant number, since it is smaller than the sum of its proper divisors (68900312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68828488 is a wasteful number, since it uses less digits than its factorization.
68828488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6301 (or 6297 counting only the distinct ones).
The product of its digits is 1572864, while the sum is 52.
The square root of 68828488 is about 8296.2936302906. The cubic root of 68828488 is about 409.8164714980.
The spelling of 68828488 in words is "sixty-eight million, eight hundred twenty-eight thousand, four hundred eighty-eight".
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