Search a number
-
+
7143133 = 23310571
BaseRepresentation
bin11011001111111011011101
3111102220112111
4123033323131
53312040013
6413034021
7114500314
oct33177335
914386474
107143133
114039818
122485911
13163140a
14d3d27b
1596173d
hex6cfedd

7143133 has 4 divisors (see below), whose sum is σ = 7453728. Its totient is φ = 6832540.

The previous prime is 7143127. The next prime is 7143137. The reversal of 7143133 is 3313417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7143133 - 29 = 7142621 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155263 + ... + 155308.

It is an arithmetic number, because the mean of its divisors is an integer number (1863432).

Almost surely, 27143133 is an apocalyptic number.

It is an amenable number.

7143133 is a deficient number, since it is larger than the sum of its proper divisors (310595).

7143133 is a wasteful number, since it uses less digits than its factorization.

7143133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310594.

The product of its digits is 756, while the sum is 22.

The square root of 7143133 is about 2672.6640267718. The cubic root of 7143133 is about 192.5881577431.

The spelling of 7143133 in words is "seven million, one hundred forty-three thousand, one hundred thirty-three".

Divisors: 1 23 310571 7143133