Search a number
-
+
6945401 = 17408553
BaseRepresentation
bin11010011111101001111001
3111001212022002
4122133221321
53234223101
6404510345
7113014661
oct32375171
914055262
106945401
113a14201
1223ab3b5
131592408
14ccb1a1
15922d6b
hex69fa79

6945401 has 4 divisors (see below), whose sum is σ = 7353972. Its totient is φ = 6536832.

The previous prime is 6945397. The next prime is 6945437. The reversal of 6945401 is 1045496.

6945401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 2105401 = 2200^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 6945401 - 22 = 6945397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6945481) 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, 204260 + ... + 204293.

It is an arithmetic number, because the mean of its divisors is an integer number (1838493).

Almost surely, 26945401 is an apocalyptic number.

It is an amenable number.

6945401 is a deficient number, since it is larger than the sum of its proper divisors (408571).

6945401 is a wasteful number, since it uses less digits than its factorization.

6945401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408570.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6945401 is about 2635.4128708800. The cubic root of 6945401 is about 190.7944665522.

The spelling of 6945401 in words is "six million, nine hundred forty-five thousand, four hundred one".

Divisors: 1 17 408553 6945401