Base | Representation |
---|---|
bin | 101011001110000… |
… | …100010000110000 |
3 | 1212112102021211222 |
4 | 223032010100300 |
5 | 2441111422020 |
6 | 155541324212 |
7 | 23653212536 |
oct | 5316042060 |
9 | 1775367758 |
10 | 725107760 |
11 | 342339213 |
12 | 182a06668 |
13 | b72c0660 |
14 | 6c432156 |
15 | 439d1b25 |
hex | 2b384430 |
725107760 has 80 divisors (see below), whose sum is σ = 1819987680. Its totient is φ = 267079680.
The previous prime is 725107751. The next prime is 725107769. The reversal of 725107760 is 67701527.
It is an interprime number because it is at equal distance from previous prime (725107751) and next prime (725107769).
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×7251077602 = 1051562527224435200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 725107760.
It is not an unprimeable number, because it can be changed into a prime (725107769) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 718136 + ... + 719144.
It is an arithmetic number, because the mean of its divisors is an integer number (22749846).
Almost surely, 2725107760 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 725107760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909993840).
725107760 is an abundant number, since it is smaller than the sum of its proper divisors (1094879920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
725107760 is a wasteful number, since it uses less digits than its factorization.
725107760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1726 (or 1720 counting only the distinct ones).
The product of its (nonzero) digits is 20580, while the sum is 35.
The square root of 725107760 is about 26927.8250142859. The cubic root of 725107760 is about 898.3953960065.
The spelling of 725107760 in words is "seven hundred twenty-five million, one hundred seven thousand, seven hundred sixty".
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