Base | Representation |
---|---|
bin | 11010101010010101000101 |
3 | 111011002021111 |
4 | 122222111011 |
5 | 3242123000 |
6 | 405445021 |
7 | 113256313 |
oct | 32522505 |
9 | 14132244 |
10 | 6989125 |
11 | 3a44040 |
12 | 2410771 |
13 | 15a92a0 |
14 | cdd0b3 |
15 | 930cba |
hex | 6aa545 |
6989125 has 64 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 4224000.
The previous prime is 6989123. The next prime is 6989137. The reversal of 6989125 is 5219896.
It is not a de Polignac number, because 6989125 - 21 = 6989123 is a prime.
6989125 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6989123) 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 63 ways as a sum of consecutive naturals, for example, 303864 + ... + 303886.
It is an arithmetic number, because the mean of its divisors is an integer number (176904).
Almost surely, 26989125 is an apocalyptic number.
6989125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
6989125 is a deficient number, since it is larger than the sum of its proper divisors (4332731).
6989125 is a wasteful number, since it uses less digits than its factorization.
6989125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79 (or 69 counting only the distinct ones).
The product of its digits is 38880, while the sum is 40.
The square root of 6989125 is about 2643.6953304040. The cubic root of 6989125 is about 191.1940044250.
The spelling of 6989125 in words is "six million, nine hundred eighty-nine thousand, one hundred twenty-five".
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