Search a number
-
+
13868743 = 75573557
BaseRepresentation
bin110100111001…
…111011000111
3222002121100011
4310321323013
512022244433
61213131051
7225611440
oct64717307
928077304
1013868743
117912879
124789a87
132b47775
141bb02c7
15133e3cd
hexd39ec7

13868743 has 8 divisors (see below), whose sum is σ = 15882912. Its totient is φ = 11862816.

The previous prime is 13868737. The next prime is 13868761. The reversal of 13868743 is 34786831.

13868743 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13868743 - 25 = 13868711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13868696 and 13868705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121 + ... + 5677.

It is an arithmetic number, because the mean of its divisors is an integer number (1985364).

Almost surely, 213868743 is an apocalyptic number.

13868743 is a deficient number, since it is larger than the sum of its proper divisors (2014169).

13868743 is an equidigital number, since it uses as much as digits as its factorization.

13868743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121.

The product of its digits is 96768, while the sum is 40.

The square root of 13868743 is about 3724.0761270414. The cubic root of 13868743 is about 240.2586505476.

The spelling of 13868743 in words is "thirteen million, eight hundred sixty-eight thousand, seven hundred forty-three".

Divisors: 1 7 557 3557 3899 24899 1981249 13868743