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6900493 = 47146819
BaseRepresentation
bin11010010100101100001101
3110222120200211
4122110230031
53231303433
6403522421
7112440025
oct32245415
913876624
106900493
113993496
122389411
131577b42
14cb8a85
159148cd
hex694b0d

6900493 has 4 divisors (see below), whose sum is σ = 7047360. Its totient is φ = 6753628.

The previous prime is 6900479. The next prime is 6900497. The reversal of 6900493 is 3940096.

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 6900493 - 217 = 6769421 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 (6900497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73363 + ... + 73456.

It is an arithmetic number, because the mean of its divisors is an integer number (1761840).

Almost surely, 26900493 is an apocalyptic number.

It is an amenable number.

6900493 is a deficient number, since it is larger than the sum of its proper divisors (146867).

6900493 is a wasteful number, since it uses less digits than its factorization.

6900493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146866.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 6900493 is about 2626.8789465828. The cubic root of 6900493 is about 190.3823602076.

The spelling of 6900493 in words is "six million, nine hundred thousand, four hundred ninety-three".

Divisors: 1 47 146819 6900493