Base | Representation |
---|---|
bin | 111101001000110… |
… | …000001001010000 |
3 | 2122111001012002121 |
4 | 331020300021100 |
5 | 4100040021103 |
6 | 245440224024 |
7 | 34263226132 |
oct | 7510601120 |
9 | 2574035077 |
10 | 1025704528 |
11 | 486a8aaa2 |
12 | 24760b014 |
13 | 134669c74 |
14 | 9a31d052 |
15 | 600ac6bd |
hex | 3d230250 |
1025704528 has 20 divisors (see below), whose sum is σ = 2041014580. Its totient is φ = 498991104.
The previous prime is 1025704457. The next prime is 1025704529. The reversal of 1025704528 is 8254075201.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 938319424 + 87385104 = 30632^2 + 9348^2 .
It is a junction number, because it is equal to n+sod(n) for n = 1025704493 and 1025704502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1025704529) 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 3 ways as a sum of consecutive naturals, for example, 865713 + ... + 866896.
It is an arithmetic number, because the mean of its divisors is an integer number (102050729).
Almost surely, 21025704528 is an apocalyptic number.
It is an amenable number.
1025704528 is a deficient number, since it is larger than the sum of its proper divisors (1015310052).
1025704528 is a wasteful number, since it uses less digits than its factorization.
1025704528 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1732654 (or 1732648 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 34.
The square root of 1025704528 is about 32026.6221759336. The cubic root of 1025704528 is about 1008.4957930951.
Adding to 1025704528 its reverse (8254075201), we get a palindrome (9279779729).
The spelling of 1025704528 in words is "one billion, twenty-five million, seven hundred four thousand, five hundred twenty-eight".
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