Base | Representation |
---|---|
bin | 1101011101010011… |
… | …10111111110101000 |
3 | 200122112110011202221 |
4 | 12232221313332220 |
5 | 104244121230242 |
6 | 3152540403424 |
7 | 344022005635 |
oct | 65651677650 |
9 | 20575404687 |
10 | 7225180072 |
11 | 3078475800 |
12 | 1497846574 |
13 | 8b1b683a6 |
14 | 4c781518c |
15 | 2c4499167 |
hex | 1aea77fa8 |
7225180072 has 48 divisors (see below), whose sum is σ = 15538209120. Its totient is φ = 3141372960.
The previous prime is 7225180063. The next prime is 7225180073. The reversal of 7225180072 is 2700815227.
It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (7225180073) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139998 + ... + 184525.
It is an arithmetic number, because the mean of its divisors is an integer number (323712690).
Almost surely, 27225180072 is an apocalyptic number.
It is an amenable number.
7225180072 is an abundant number, since it is smaller than the sum of its proper divisors (8313029048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7225180072 is a wasteful number, since it uses less digits than its factorization.
7225180072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 324574 (or 324559 counting only the distinct ones).
The product of its (nonzero) digits is 15680, while the sum is 34.
The square root of 7225180072 is about 85001.0592404589. The cubic root of 7225180072 is about 1933.2271772337.
Adding to 7225180072 its reverse (2700815227), we get a palindrome (9925995299).
The spelling of 7225180072 in words is "seven billion, two hundred twenty-five million, one hundred eighty thousand, seventy-two".
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