Base | Representation |
---|---|
bin | 11101111011101000010… |
… | …11010110111101110100 |
3 | 10122022121012012010110010 |
4 | 32331310023112331310 |
5 | 113322224224142302 |
6 | 2104243421500220 |
7 | 134205600320040 |
oct | 16756413267564 |
9 | 3568535163403 |
10 | 1028446318452 |
11 | 367186153a93 |
12 | 1473a0711670 |
13 | 75c9c7c4637 |
14 | 37ac43b7020 |
15 | 1bb43c9016c |
hex | ef742d6f74 |
1028446318452 has 192 divisors, whose sum is σ = 2981705416704. Its totient is φ = 269455697280.
The previous prime is 1028446318451. The next prime is 1028446318453. The reversal of 1028446318452 is 2548136448201.
It is an interprime number because it is at equal distance from previous prime (1028446318451) and next prime (1028446318453).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1028446318451) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6328203 + ... + 6488685.
It is an arithmetic number, because the mean of its divisors is an integer number (15529715712).
Almost surely, 21028446318452 is an apocalyptic number.
1028446318452 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 1028446318452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490852708352).
1028446318452 is an abundant number, since it is smaller than the sum of its proper divisors (1953259098252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028446318452 is a wasteful number, since it uses less digits than its factorization.
1028446318452 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160658 (or 160656 counting only the distinct ones).
The product of its (nonzero) digits is 1474560, while the sum is 48.
The spelling of 1028446318452 in words is "one trillion, twenty-eight billion, four hundred forty-six million, three hundred eighteen thousand, four hundred fifty-two".
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