Base | Representation |
---|---|
bin | 1000101010110… |
… | …11001001000100 |
3 | 12001211211000202 |
4 | 10111123021010 |
5 | 122104200220 |
6 | 11114430032 |
7 | 1542103262 |
oct | 425331104 |
9 | 161754022 |
10 | 72725060 |
11 | 38062461 |
12 | 20432318 |
13 | 120b3ca5 |
14 | 9931432 |
15 | 65b8275 |
hex | 455b244 |
72725060 has 24 divisors (see below), whose sum is σ = 153170136. Its totient is φ = 29004800.
The previous prime is 72725047. The next prime is 72725077. The reversal of 72725060 is 6052727.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 21086464 + 51638596 = 4592^2 + 7186^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 12210.
It is an arithmetic number, because the mean of its divisors is an integer number (6382089).
Almost surely, 272725060 is an apocalyptic number.
It is an amenable number.
72725060 is an abundant number, since it is smaller than the sum of its proper divisors (80445076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72725060 is a wasteful number, since it uses less digits than its factorization.
72725060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10663 (or 10661 counting only the distinct ones).
The product of its (nonzero) digits is 5880, while the sum is 29.
The square root of 72725060 is about 8527.8989206017. The cubic root of 72725060 is about 417.4085711802.
Adding to 72725060 its reverse (6052727), we get a palindrome (78777787).
The spelling of 72725060 in words is "seventy-two million, seven hundred twenty-five thousand, sixty".
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