Search a number
-
+
7801113 = 3171511013
BaseRepresentation
bin11101110000100100011001
3112200100010010
4131300210121
53444113423
6435112133
7123210525
oct35604431
915610103
107801113
114449101
122742649
131801a58
141070d85
15a41693
hex770919

7801113 has 16 divisors (see below), whose sum is σ = 11097216. Its totient is φ = 4857600.

The previous prime is 7801099. The next prime is 7801121. The reversal of 7801113 is 3111087.

It is not a de Polignac number, because 7801113 - 25 = 7801081 is a prime.

It is a Curzon number.

7801113 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7801113.

It is not an unprimeable number, because it can be changed into a prime (7801813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7195 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 27801113 is an apocalyptic number.

It is an amenable number.

7801113 is a deficient number, since it is larger than the sum of its proper divisors (3296103).

7801113 is a wasteful number, since it uses less digits than its factorization.

7801113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 7801113 is about 2793.0472606098. The cubic root of 7801113 is about 198.3286806965.

The spelling of 7801113 in words is "seven million, eight hundred one thousand, one hundred thirteen".

Divisors: 1 3 17 51 151 453 1013 2567 3039 7701 17221 51663 152963 458889 2600371 7801113