Base | Representation |
---|---|
bin | 11101111010101001101101 |
3 | 112202102202202 |
4 | 131322221231 |
5 | 4001424123 |
6 | 440031245 |
7 | 123442115 |
oct | 35725155 |
9 | 15672682 |
10 | 7842413 |
11 | 4477137 |
12 | 2762525 |
13 | 18177a7 |
14 | 1082045 |
15 | a4da28 |
hex | 77aa6d |
7842413 has 4 divisors (see below), whose sum is σ = 7930620. Its totient is φ = 7754208.
The previous prime is 7842403. The next prime is 7842427. The reversal of 7842413 is 3142487.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 4609609 + 3232804 = 2147^2 + 1798^2 .
It is a cyclic number.
It is not a de Polignac number, because 7842413 - 218 = 7580269 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7842403) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43970 + ... + 44147.
It is an arithmetic number, because the mean of its divisors is an integer number (1982655).
Almost surely, 27842413 is an apocalyptic number.
It is an amenable number.
7842413 is a deficient number, since it is larger than the sum of its proper divisors (88207).
7842413 is an equidigital number, since it uses as much as digits as its factorization.
7842413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 88206.
The product of its digits is 5376, while the sum is 29.
The square root of 7842413 is about 2800.4308597071. The cubic root of 7842413 is about 198.6780565791.
The spelling of 7842413 in words is "seven million, eight hundred forty-two thousand, four hundred thirteen".
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