Base | Representation |
---|---|
bin | 11110011111100000011001 |
3 | 120001002211201 |
4 | 132133200121 |
5 | 4021241434 |
6 | 443154201 |
7 | 124641166 |
oct | 36374031 |
9 | 16032751 |
10 | 7993369 |
11 | 456a59a |
12 | 2815961 |
13 | 186b407 |
14 | 10c106d |
15 | a7d614 |
hex | 79f819 |
7993369 has 4 divisors (see below), whose sum is σ = 8209444. Its totient is φ = 7777296.
The previous prime is 7993367. The next prime is 7993421. The reversal of 7993369 is 9633997.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9633997 = 67 ⋅143791.
It can be written as a sum of positive squares in 2 ways, for example, as 5817744 + 2175625 = 2412^2 + 1475^2 .
It is a cyclic number.
It is not a de Polignac number, because 7993369 - 21 = 7993367 is a prime.
It is a super-2 number, since 2×79933692 = 127787895940322, which contains 22 as substring.
It is a Duffinian number.
7993369 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (7993361) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107982 + ... + 108055.
It is an arithmetic number, because the mean of its divisors is an integer number (2052361).
Almost surely, 27993369 is an apocalyptic number.
It is an amenable number.
7993369 is a deficient number, since it is larger than the sum of its proper divisors (216075).
7993369 is a wasteful number, since it uses less digits than its factorization.
7993369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 216074.
The product of its digits is 275562, while the sum is 46.
The square root of 7993369 is about 2827.2546754758. The cubic root of 7993369 is about 199.9447263922.
The spelling of 7993369 in words is "seven million, nine hundred ninety-three thousand, three hundred sixty-nine".
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