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8069769 = 325211721
BaseRepresentation
bin11110110010001010001001
3120011222122100
4132302022021
54031213034
6444544013
7125410011
oct36621211
916158570
108069769
114611a34
122852009
131897116
141100c41
15a96099
hex7b2289

8069769 has 12 divisors (see below), whose sum is σ = 11685492. Its totient is φ = 5366400.

The previous prime is 8069753. The next prime is 8069777. The reversal of 8069769 is 9679608.

It can be written as a sum of positive squares in 2 ways, for example, as 4149369 + 3920400 = 2037^2 + 1980^2 .

It is not a de Polignac number, because 8069769 - 24 = 8069753 is a prime.

It is a super-2 number, since 2×80697692 = 130242343426722, which contains 22 as substring.

8069769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8069749) 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 11 ways as a sum of consecutive naturals, for example, 3829 + ... + 5549.

It is an arithmetic number, because the mean of its divisors is an integer number (973791).

Almost surely, 28069769 is an apocalyptic number.

It is an amenable number.

8069769 is a deficient number, since it is larger than the sum of its proper divisors (3615723).

8069769 is a wasteful number, since it uses less digits than its factorization.

8069769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 8069769 is about 2840.7338840518. The cubic root of 8069769 is about 200.5797262968.

The spelling of 8069769 in words is "eight million, sixty-nine thousand, seven hundred sixty-nine".

Divisors: 1 3 9 521 1563 1721 4689 5163 15489 896641 2689923 8069769