Base | Representation |
---|---|
bin | 11101110111110110110101 |
3 | 112201212001202 |
4 | 131313312311 |
5 | 4001042330 |
6 | 435502245 |
7 | 123363542 |
oct | 35676665 |
9 | 15655052 |
10 | 7830965 |
11 | 446957a |
12 | 2757985 |
13 | 181250c |
14 | 107bbc9 |
15 | a4a445 |
hex | 777db5 |
7830965 has 16 divisors (see below), whose sum is σ = 10024560. Its totient is φ = 5852160.
The previous prime is 7830961. The next prime is 7830973. The reversal of 7830965 is 5690387.
It can be written as a sum of positive squares in 8 ways, for example, as 69169 + 7761796 = 263^2 + 2786^2 .
It is not a de Polignac number, because 7830965 - 22 = 7830961 is a prime.
It is a super-2 number, since 2×78309652 = 122648025662450, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7830961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15131 + ... + 15639.
It is an arithmetic number, because the mean of its divisors is an integer number (626535).
Almost surely, 27830965 is an apocalyptic number.
It is an amenable number.
7830965 is a deficient number, since it is larger than the sum of its proper divisors (2193595).
7830965 is a wasteful number, since it uses less digits than its factorization.
7830965 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 712.
The product of its (nonzero) digits is 45360, while the sum is 38.
The square root of 7830965 is about 2798.3861420469. The cubic root of 7830965 is about 198.5813357522.
The spelling of 7830965 in words is "seven million, eight hundred thirty thousand, nine hundred sixty-five".
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