Base | Representation |
---|---|
bin | 101010100101001… |
… | …1100100011010110 |
3 | 10200120112122112100 |
4 | 1111022130203112 |
5 | 10411233124000 |
6 | 353440102530 |
7 | 50256420525 |
oct | 12512344326 |
9 | 3616478470 |
10 | 1428801750 |
11 | 6735809a2 |
12 | 33a604a46 |
13 | 19a02422c |
14 | d7a8c4bc |
15 | 85683a00 |
hex | 5529c8d6 |
1428801750 has 96 divisors (see below), whose sum is σ = 3881105280. Its totient is φ = 379276800.
The previous prime is 1428801727. The next prime is 1428801763. The reversal of 1428801750 is 571088241.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536422 + ... + 539078.
It is an arithmetic number, because the mean of its divisors is an integer number (40428180).
Almost surely, 21428801750 is an apocalyptic number.
1428801750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1428801750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940552640).
1428801750 is an abundant number, since it is smaller than the sum of its proper divisors (2452303530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1428801750 is a wasteful number, since it uses less digits than its factorization.
1428801750 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2919 (or 2906 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
The square root of 1428801750 is about 37799.4940442329. The cubic root of 1428801750 is about 1126.3084036293.
Adding to 1428801750 its reverse (571088241), we get a palindrome (1999889991).
The spelling of 1428801750 in words is "one billion, four hundred twenty-eight million, eight hundred one thousand, seven hundred fifty".
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