Base | Representation |
---|---|
bin | 10111011010111111… |
… | …011000100001000000 |
3 | 2101220200001201201021 |
4 | 113122333120201000 |
5 | 403001103310211 |
6 | 15315255515224 |
7 | 1550132665411 |
oct | 273277304100 |
9 | 71820051637 |
10 | 25148885056 |
11 | a735987629 |
12 | 4a5a388b14 |
13 | 24aa334a99 |
14 | 1308061808 |
15 | 9c2cd1771 |
hex | 5dafd8840 |
25148885056 has 63 divisors (see below), whose sum is σ = 51203456013. Its totient is φ = 12255371520.
The previous prime is 25148885029. The next prime is 25148885071. The reversal of 25148885056 is 65058884152.
The square root of 25148885056 is 158584.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 8061166656 + 17087718400 = 89784^2 + 130720^2 .
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 25148884994 and 25148885012.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54552666 + ... + 54553126.
Almost surely, 225148885056 is an apocalyptic number.
25148885056 is the 158584-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25148885056
25148885056 is an abundant number, since it is smaller than the sum of its proper divisors (26054570957).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25148885056 is an frugal number, since it uses more digits than its factorization.
25148885056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1020 (or 506 counting only the distinct ones).
The product of its (nonzero) digits is 3072000, while the sum is 52.
The spelling of 25148885056 in words is "twenty-five billion, one hundred forty-eight million, eight hundred eighty-five thousand, fifty-six".
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