Base | Representation |
---|---|
bin | 1101100000010111… |
… | …01010010000100100 |
3 | 200201022200111220020 |
4 | 12300023222100210 |
5 | 104322202021423 |
6 | 3155254035140 |
7 | 344452621245 |
oct | 66013522044 |
9 | 20638614806 |
10 | 7250813988 |
11 | 3090993960 |
12 | 14a4348ab0 |
13 | 8b7271ca2 |
14 | 4cada8ccc |
15 | 2c685e4e3 |
hex | 1b02ea424 |
7250813988 has 48 divisors (see below), whose sum is σ = 18528519744. Its totient is φ = 2188656640.
The previous prime is 7250813981. The next prime is 7250813989. The reversal of 7250813988 is 8893180527.
It is a self number, because there is not a number n which added to its sum of digits gives 7250813988.
It is not an unprimeable number, because it can be changed into a prime (7250813981) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72945 + ... + 140792.
It is an arithmetic number, because the mean of its divisors is an integer number (386010828).
Almost surely, 27250813988 is an apocalyptic number.
It is an amenable number.
7250813988 is an abundant number, since it is smaller than the sum of its proper divisors (11277705756).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7250813988 is a wasteful number, since it uses less digits than its factorization.
7250813988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 214012 (or 214010 counting only the distinct ones).
The product of its (nonzero) digits is 967680, while the sum is 51.
The square root of 7250813988 is about 85151.7115975950. The cubic root of 7250813988 is about 1935.5107508707.
The spelling of 7250813988 in words is "seven billion, two hundred fifty million, eight hundred thirteen thousand, nine hundred eighty-eight".
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