Base | Representation |
---|---|
bin | 10111010111100000… |
… | …110000011011011000 |
3 | 2101202121020201121120 |
4 | 113113200300123120 |
5 | 402341133244023 |
6 | 15305413005240 |
7 | 1545523641222 |
oct | 272740603330 |
9 | 71677221546 |
10 | 25090524888 |
11 | a705a46790 |
12 | 4a42923820 |
13 | 249b210340 |
14 | 13003cd412 |
15 | 9bcb048e3 |
hex | 5d78306d8 |
25090524888 has 128 divisors (see below), whose sum is σ = 74135416320. Its totient is φ = 6976143360.
The previous prime is 25090524883. The next prime is 25090524889. The reversal of 25090524888 is 88842509052.
It is a super-4 number, since 4×250905248884 (a number of 43 digits) contains 4444 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 25090524888.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25090524883) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 551256 + ... + 595032.
It is an arithmetic number, because the mean of its divisors is an integer number (579182940).
Almost surely, 225090524888 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25090524888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37067708160).
25090524888 is an abundant number, since it is smaller than the sum of its proper divisors (49044891432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25090524888 is a wasteful number, since it uses less digits than its factorization.
25090524888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43977 (or 43973 counting only the distinct ones).
The product of its (nonzero) digits is 1843200, while the sum is 51.
The spelling of 25090524888 in words is "twenty-five billion, ninety million, five hundred twenty-four thousand, eight hundred eighty-eight".
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