Base | Representation |
---|---|
bin | 110001001101… |
… | …0100010101110 |
3 | 1210112201100020 |
4 | 1202122202232 |
5 | 23101030310 |
6 | 2320543010 |
7 | 432200151 |
oct | 142324256 |
9 | 53481306 |
10 | 25798830 |
11 | 13621052 |
12 | 8781a66 |
13 | 54639a5 |
14 | 35d7c98 |
15 | 23e9170 |
hex | 189a8ae |
25798830 has 32 divisors (see below), whose sum is σ = 62058528. Its totient is φ = 6864000.
The previous prime is 25798813. The next prime is 25798837. The reversal of 25798830 is 3889752.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25798837) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19180 + ... + 20480.
It is an arithmetic number, because the mean of its divisors is an integer number (1939329).
Almost surely, 225798830 is an apocalyptic number.
25798830 is an abundant number, since it is smaller than the sum of its proper divisors (36259698).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25798830 is a wasteful number, since it uses less digits than its factorization.
25798830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1972.
The product of its (nonzero) digits is 120960, while the sum is 42.
The square root of 25798830 is about 5079.2548666118. The cubic root of 25798830 is about 295.4835696214.
The spelling of 25798830 in words is "twenty-five million, seven hundred ninety-eight thousand, eight hundred thirty".
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