Base | Representation |
---|---|
bin | 10111100100000001… |
… | …111010000001100100 |
3 | 2102022020102200022002 |
4 | 113210001322001210 |
5 | 403303414312130 |
6 | 15342314224432 |
7 | 1553654024531 |
oct | 274401720144 |
9 | 72266380262 |
10 | 25300541540 |
11 | a80355036a |
12 | 4aa1125118 |
13 | 2502893951 |
14 | 132025bd88 |
15 | 9d128bb45 |
hex | 5e407a064 |
25300541540 has 48 divisors (see below), whose sum is σ = 55067905200. Its totient is φ = 9756329472.
The previous prime is 25300541527. The next prime is 25300541549. The reversal of 25300541540 is 4514500352.
It can be written as a sum of positive squares in 8 ways, for example, as 672261184 + 24628280356 = 25928^2 + 156934^2 .
It is not an unprimeable number, because it can be changed into a prime (25300541549) 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, 76175 + ... + 237494.
It is an arithmetic number, because the mean of its divisors is an integer number (1147248025).
Almost surely, 225300541540 is an apocalyptic number.
25300541540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25300541540 is an abundant number, since it is smaller than the sum of its proper divisors (29767363660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25300541540 is a wasteful number, since it uses less digits than its factorization.
25300541540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 313824 (or 313822 counting only the distinct ones).
The product of its (nonzero) digits is 12000, while the sum is 29.
The spelling of 25300541540 in words is "twenty-five billion, three hundred million, five hundred forty-one thousand, five hundred forty".
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