Search a number
-
+
6930239 = 7197609
BaseRepresentation
bin11010011011111100111111
3111001002111112
4122123330333
53233231424
6404312235
7112622531
oct32337477
914032445
106930239
113a03878
1223a267b
131588544
14cc5851
1591d60e
hex69bf3f

6930239 has 4 divisors (see below), whose sum is σ = 7027920. Its totient is φ = 6832560.

The previous prime is 6930233. The next prime is 6930241. The reversal of 6930239 is 9320396.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6930239 - 24 = 6930223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930233) 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, 48734 + ... + 48875.

It is an arithmetic number, because the mean of its divisors is an integer number (1756980).

Almost surely, 26930239 is an apocalyptic number.

6930239 is a deficient number, since it is larger than the sum of its proper divisors (97681).

6930239 is an equidigital number, since it uses as much as digits as its factorization.

6930239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97680.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 6930239 is about 2632.5347101225. The cubic root of 6930239 is about 190.6555288917.

The spelling of 6930239 in words is "six million, nine hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 71 97609 6930239