Base | Representation |
---|---|
bin | 10111100000010100… |
… | …100010000011110010 |
3 | 2102010220100020212200 |
4 | 113200110202003302 |
5 | 403142002042000 |
6 | 15332212404030 |
7 | 1552300066011 |
oct | 274024420362 |
9 | 72126306780 |
10 | 25238315250 |
11 | a781409885 |
12 | 4a84316616 |
13 | 24c2a17565 |
14 | 1315ca0a78 |
15 | 9caa99500 |
hex | 5e05220f2 |
25238315250 has 96 divisors (see below), whose sum is σ = 68285842560. Its totient is φ = 6726132000.
The previous prime is 25238315227. The next prime is 25238315251. The reversal of 25238315250 is 5251383252.
25238315250 is a `hidden beast` number, since 2 + 52 + 3 + 83 + 1 + 525 + 0 = 666.
It is not an unprimeable number, because it can be changed into a prime (25238315251) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6277741 + ... + 6281759.
It is an arithmetic number, because the mean of its divisors is an integer number (711310860).
Almost surely, 225238315250 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25238315250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34142921280).
25238315250 is an abundant number, since it is smaller than the sum of its proper divisors (43047527310).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25238315250 is a wasteful number, since it uses less digits than its factorization.
25238315250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6833 (or 6820 counting only the distinct ones).
The product of its (nonzero) digits is 72000, while the sum is 36.
The spelling of 25238315250 in words is "twenty-five billion, two hundred thirty-eight million, three hundred fifteen thousand, two hundred fifty".
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