Base | Representation |
---|---|
bin | 11111000100100001000101 |
3 | 120022210210101 |
4 | 133010201011 |
5 | 4041114330 |
6 | 450324101 |
7 | 126142153 |
oct | 37044105 |
9 | 16283711 |
10 | 8144965 |
11 | 4663484 |
12 | 2889631 |
13 | 18c240a |
14 | 11203d3 |
15 | aad4ca |
hex | 7c4845 |
8144965 has 8 divisors (see below), whose sum is σ = 9824760. Its totient is φ = 6482112.
The previous prime is 8144963. The next prime is 8144999. The reversal of 8144965 is 5694418.
It is a happy number.
8144965 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 4937284 + 3207681 = 2222^2 + 1791^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 8144965 - 21 = 8144963 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8144963) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3150 + ... + 5119.
It is an arithmetic number, because the mean of its divisors is an integer number (1228095).
Almost surely, 28144965 is an apocalyptic number.
It is an amenable number.
8144965 is a deficient number, since it is larger than the sum of its proper divisors (1679795).
8144965 is a wasteful number, since it uses less digits than its factorization.
8144965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8471.
The product of its digits is 34560, while the sum is 37.
The square root of 8144965 is about 2853.9385066956. The cubic root of 8144965 is about 201.2008174248.
The spelling of 8144965 in words is "eight million, one hundred forty-four thousand, nine hundred sixty-five".
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