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69382388 = 22173310009
BaseRepresentation
bin1000010001010…
…11000011110100
311211112222202002
410020223003310
5120230214023
610515034432
71501512005
oct410530364
9154488662
1069382388
113618a019
121b29ba18
13114b368a
1493011ac
156157b28
hex422b0f4

69382388 has 12 divisors (see below), whose sum is σ = 121501380. Its totient is φ = 34667712.

The previous prime is 69382361. The next prime is 69382399. The reversal of 69382388 is 88328396.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56220004 + 13162384 = 7498^2 + 3628^2 .

It is a congruent number.

It is an unprimeable number.

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, 1928 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (10125115).

Almost surely, 269382388 is an apocalyptic number.

It is an amenable number.

69382388 is a deficient number, since it is larger than the sum of its proper divisors (52118992).

69382388 is a wasteful number, since it uses less digits than its factorization.

69382388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746 (or 11744 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 69382388 is about 8329.6091144783. The cubic root of 69382388 is about 410.9128737516.

The spelling of 69382388 in words is "sixty-nine million, three hundred eighty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 1733 3466 6932 10009 20018 40036 17345597 34691194 69382388