Base | Representation |
---|---|
bin | 111101010011100… |
… | …011110010001000 |
3 | 2122200101010011202 |
4 | 331103203302020 |
5 | 4101301144410 |
6 | 250021043332 |
7 | 34326265355 |
oct | 7523436210 |
9 | 2580333152 |
10 | 1028537480 |
11 | 488645483 |
12 | 248556548 |
13 | 13511c579 |
14 | 9a85962c |
15 | 6046bca5 |
hex | 3d4e3c88 |
1028537480 has 64 divisors (see below), whose sum is σ = 2378965680. Its totient is φ = 399974400.
The previous prime is 1028537473. The next prime is 1028537527. The reversal of 1028537480 is 847358201.
1028537480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 4153444 + 1024384036 = 2038^2 + 32006^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551750 + ... + 553610.
Almost surely, 21028537480 is an apocalyptic number.
1028537480 is a gapful number since it is divisible by the number (10) 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 1028537480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189482840).
1028537480 is an abundant number, since it is smaller than the sum of its proper divisors (1350428200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028537480 is a wasteful number, since it uses less digits than its factorization.
1028537480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2250 (or 2246 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 38.
The square root of 1028537480 is about 32070.8197587776. The cubic root of 1028537480 is about 1009.4234136728.
The spelling of 1028537480 in words is "one billion, twenty-eight million, five hundred thirty-seven thousand, four hundred eighty".
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