Base | Representation |
---|---|
bin | 10111111100010010… |
… | …001101010111101110 |
3 | 2110100121010200211110 |
4 | 113330102031113232 |
5 | 410122102441040 |
6 | 15450532132450 |
7 | 1600024606041 |
oct | 277422152756 |
9 | 73317120743 |
10 | 25707468270 |
11 | a9a2217450 |
12 | 4b95467126 |
13 | 2568c8bcb3 |
14 | 135c306c58 |
15 | a06d6c980 |
hex | 5fc48d5ee |
25707468270 has 256 divisors, whose sum is σ = 71684849664. Its totient is φ = 5842368000.
The previous prime is 25707468211. The next prime is 25707468271. The reversal of 25707468270 is 7286470752.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25707468271) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 61062660 + ... + 61063080.
It is an arithmetic number, because the mean of its divisors is an integer number (280018944).
Almost surely, 225707468270 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25707468270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35842424832).
25707468270 is an abundant number, since it is smaller than the sum of its proper divisors (45977381394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25707468270 is a wasteful number, since it uses less digits than its factorization.
25707468270 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 647.
The product of its (nonzero) digits is 1317120, while the sum is 48.
The spelling of 25707468270 in words is "twenty-five billion, seven hundred seven million, four hundred sixty-eight thousand, two hundred seventy".
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