Search a number
-
+
7040343 = 32346781
BaseRepresentation
bin11010110110110101010111
3111020200112110
4122312311113
53300242333
6410522103
7113561532
oct32666527
914220473
107040343
113a79572
122436333
1315c66ab
14d13a19
15941063
hex6b6d57

7040343 has 4 divisors (see below), whose sum is σ = 9387128. Its totient is φ = 4693560.

The previous prime is 7040321. The next prime is 7040353. The reversal of 7040343 is 3430407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430407 = 31143469.

It is not a de Polignac number, because 7040343 - 212 = 7036247 is a prime.

It is a D-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 (7040353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173388 + ... + 1173393.

It is an arithmetic number, because the mean of its divisors is an integer number (2346782).

Almost surely, 27040343 is an apocalyptic number.

7040343 is a deficient number, since it is larger than the sum of its proper divisors (2346785).

7040343 is a wasteful number, since it uses less digits than its factorization.

7040343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346784.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 7040343 is about 2653.3644679915. The cubic root of 7040343 is about 191.6599068399.

The spelling of 7040343 in words is "seven million, forty thousand, three hundred forty-three".

Divisors: 1 3 2346781 7040343