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6740395 = 52116389
BaseRepresentation
bin11001101101100110101011
3110200110002021
4121231212223
53211143040
6400245311
7111202204
oct31554653
913613067
106740395
113894182
122310837
13151cccc
14c765ab
158d224a
hex66d9ab

6740395 has 8 divisors (see below), whose sum is σ = 8128080. Its totient is φ = 5365920.

The previous prime is 6740389. The next prime is 6740399. The reversal of 6740395 is 5930476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6740395 - 23 = 6740387 is a prime.

6740395 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6740395.

It is not an unprimeable number, because it can be changed into a prime (6740399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 4249.

It is an arithmetic number, because the mean of its divisors is an integer number (1016010).

Almost surely, 26740395 is an apocalyptic number.

6740395 is a deficient number, since it is larger than the sum of its proper divisors (1387685).

6740395 is a wasteful number, since it uses less digits than its factorization.

6740395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 6740395 is about 2596.2270701924. The cubic root of 6740395 is about 188.8984738824.

The spelling of 6740395 in words is "six million, seven hundred forty thousand, three hundred ninety-five".

Divisors: 1 5 211 1055 6389 31945 1348079 6740395