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3069445 = 5613889
BaseRepresentation
bin1011101101011000000101
312202221111011
423231120011
51241210240
6145442221
735042551
oct13553005
95687434
103069445
111807135
121040371
13836152
1459c861
154096ea
hex2ed605

3069445 has 4 divisors (see below), whose sum is σ = 3683340. Its totient is φ = 2455552.

The previous prime is 3069439. The next prime is 3069449. The reversal of 3069445 is 5449603.

3069445 is digitally balanced in base 2, 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 1887876 + 1181569 = 1374^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 3069445 - 25 = 3069413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3069449) 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, 306940 + ... + 306949.

It is an arithmetic number, because the mean of its divisors is an integer number (920835).

Almost surely, 23069445 is an apocalyptic number.

It is an amenable number.

3069445 is a deficient number, since it is larger than the sum of its proper divisors (613895).

3069445 is an equidigital number, since it uses as much as digits as its factorization.

3069445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613894.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3069445 is about 1751.9831620195. The cubic root of 3069445 is about 145.3293346588.

The spelling of 3069445 in words is "three million, sixty-nine thousand, four hundred forty-five".

Divisors: 1 5 613889 3069445