Base | Representation |
---|---|
bin | 111101000111001… |
… | …001110111111010 |
3 | 2122110020220110201 |
4 | 331013021313322 |
5 | 4044433120001 |
6 | 245423232414 |
7 | 34256532631 |
oct | 7507116772 |
9 | 2573226421 |
10 | 1025285626 |
11 | 4868242a2 |
12 | 24744870a |
13 | 1345513b1 |
14 | 9a250518 |
15 | 60028501 |
hex | 3d1c9dfa |
1025285626 has 8 divisors (see below), whose sum is σ = 1538078580. Its totient is φ = 512592768.
The previous prime is 1025285617. The next prime is 1025285629. The reversal of 1025285626 is 6265825201.
It can be written as a sum of positive squares in 2 ways, for example, as 1000773225 + 24512401 = 31635^2 + 4951^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×10252856263 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (1025285629) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10900 + ... + 46576.
Almost surely, 21025285626 is an apocalyptic number.
1025285626 is a deficient number, since it is larger than the sum of its proper divisors (512792954).
1025285626 is a wasteful number, since it uses less digits than its factorization.
1025285626 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50048.
The product of its (nonzero) digits is 57600, while the sum is 37.
The square root of 1025285626 is about 32020.0816051427. The cubic root of 1025285626 is about 1008.3584831071.
The spelling of 1025285626 in words is "one billion, twenty-five million, two hundred eighty-five thousand, six hundred twenty-six".
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