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6929993 = 7989999
BaseRepresentation
bin11010011011111001001001
3111001002011102
4122123321021
53233224433
6404311145
7112622030
oct32337111
914032142
106929993
113a03674
1223a24b5
1315883b5
14cc5717
1591d4e8
hex69be49

6929993 has 4 divisors (see below), whose sum is σ = 7920000. Its totient is φ = 5939988.

The previous prime is 6929987. The next prime is 6930023. The reversal of 6929993 is 3999296.

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 6929993 - 26 = 6929929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6929903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494993 + ... + 495006.

It is an arithmetic number, because the mean of its divisors is an integer number (1980000).

Almost surely, 26929993 is an apocalyptic number.

It is an amenable number.

6929993 is a deficient number, since it is larger than the sum of its proper divisors (990007).

6929993 is an equidigital number, since it uses as much as digits as its factorization.

6929993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990006.

The product of its digits is 236196, while the sum is 47.

The square root of 6929993 is about 2632.4879866772. The cubic root of 6929993 is about 190.6532729900.

The spelling of 6929993 in words is "six million, nine hundred twenty-nine thousand, nine hundred ninety-three".

Divisors: 1 7 989999 6929993