Base | Representation |
---|---|
bin | 11110010100011100100101 |
3 | 112221210200221 |
4 | 132110130211 |
5 | 4013314234 |
6 | 442204341 |
7 | 124362133 |
oct | 36243445 |
9 | 15853627 |
10 | 7948069 |
11 | 4539558 |
12 | 27b36b1 |
13 | 18538cc |
14 | 10ac753 |
15 | a6eeb4 |
hex | 794725 |
7948069 has 2 divisors, whose sum is σ = 7948070. Its totient is φ = 7948068.
The previous prime is 7948063. The next prime is 7948079. The reversal of 7948069 is 9608497.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7756225 + 191844 = 2785^2 + 438^2 .
It is an emirp because it is prime and its reverse (9608497) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7948069 - 25 = 7948037 is a prime.
It is a super-2 number, since 2×79480692 = 126343601657522, which contains 22 as substring.
7948069 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7948063) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3974034 + 3974035.
It is an arithmetic number, because the mean of its divisors is an integer number (3974035).
Almost surely, 27948069 is an apocalyptic number.
It is an amenable number.
7948069 is a deficient number, since it is larger than the sum of its proper divisors (1).
7948069 is an equidigital number, since it uses as much as digits as its factorization.
7948069 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108864, while the sum is 43.
The square root of 7948069 is about 2819.2319876165. The cubic root of 7948069 is about 199.5663018762.
The spelling of 7948069 in words is "seven million, nine hundred forty-eight thousand, sixty-nine".
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