Base | Representation |
---|---|
bin | 11110001011111110110001 |
3 | 112220001010122 |
4 | 132023332301 |
5 | 4011212033 |
6 | 441340025 |
7 | 124156055 |
oct | 36137661 |
9 | 15801118 |
10 | 7913393 |
11 | 45154a4 |
12 | 2797615 |
13 | 1840ba7 |
14 | 109dc65 |
15 | a64a98 |
hex | 78bfb1 |
7913393 has 2 divisors, whose sum is σ = 7913394. Its totient is φ = 7913392.
The previous prime is 7913383. The next prime is 7913429. The reversal of 7913393 is 3933197.
It is a happy number.
7913393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7573504 + 339889 = 2752^2 + 583^2 .
It is an emirp because it is prime and its reverse (3933197) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7913393 - 216 = 7847857 is a prime.
It is not a weakly prime, because it can be changed into another prime (7913363) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3956696 + 3956697.
It is an arithmetic number, because the mean of its divisors is an integer number (3956697).
Almost surely, 27913393 is an apocalyptic number.
It is an amenable number.
7913393 is a deficient number, since it is larger than the sum of its proper divisors (1).
7913393 is an equidigital number, since it uses as much as digits as its factorization.
7913393 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 15309, while the sum is 35.
The square root of 7913393 is about 2813.0753633701. The cubic root of 7913393 is about 199.2756547871.
The spelling of 7913393 in words is "seven million, nine hundred thirteen thousand, three hundred ninety-three".
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