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6945069 = 32315023
BaseRepresentation
bin11010011111100100101101
3111001211211210
4122133210231
53234220234
6404505033
7113014005
oct32374455
914054753
106945069
113a13a2a
1223ab179
131592211
14ccb005
15922be9
hex69f92d

6945069 has 4 divisors (see below), whose sum is σ = 9260096. Its totient is φ = 4630044.

The previous prime is 6945053. The next prime is 6945077. The reversal of 6945069 is 9605496.

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 not a de Polignac number, because 6945069 - 24 = 6945053 is a prime.

It is a super-2 number, since 2×69450692 = 96467966829522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940069) 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, 1157509 + ... + 1157514.

It is an arithmetic number, because the mean of its divisors is an integer number (2315024).

Almost surely, 26945069 is an apocalyptic number.

It is an amenable number.

6945069 is a deficient number, since it is larger than the sum of its proper divisors (2315027).

6945069 is a wasteful number, since it uses less digits than its factorization.

6945069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315026.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 6945069 is about 2635.3498818942. The cubic root of 6945069 is about 190.7914264219.

The spelling of 6945069 in words is "six million, nine hundred forty-five thousand, sixty-nine".

Divisors: 1 3 2315023 6945069