| Base | Representation |
|---|---|
| bin | 111111101100100… |
| … | …011101111000000 |
| 3 | 2202110211210210000 |
| 4 | 333230203233000 |
| 5 | 4142033122222 |
| 6 | 254012440000 |
| 7 | 35324223000 |
| oct | 7754435700 |
| 9 | 2673753700 |
| 10 | 1068645312 |
| 11 | 4a924a049 |
| 12 | 259a79000 |
| 13 | 140523207 |
| 14 | a1cda000 |
| 15 | 63c409ac |
| hex | 3fb23bc0 |
1068645312 has 280 divisors, whose sum is σ = 3700373600. Its totient is φ = 304819200.
The previous prime is 1068645289. The next prime is 1068645317. The reversal of 1068645312 is 2135468601.
It is a happy number.
1068645312 is a `hidden beast` number, since 1 + 0 + 6 + 8 + 645 + 3 + 1 + 2 = 666.
It is a super-2 number, since 2×10686453122 = 2284005605719154688, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1068645317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1777812 + ... + 1778412.
It is an arithmetic number, because the mean of its divisors is an integer number (13215620).
Almost surely, 21068645312 is an apocalyptic number.
1068645312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1068645312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1850186800).
1068645312 is an abundant number, since it is smaller than the sum of its proper divisors (2631728288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1068645312 is an frugal number, since it uses more digits than its factorization.
1068645312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 646 (or 613 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 1068645312 is about 32690.1408990540. The cubic root of 1068645312 is about 1022.3772923608.
The spelling of 1068645312 in words is "one billion, sixty-eight million, six hundred forty-five thousand, three hundred twelve".
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