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38395685 = 523933209
BaseRepresentation
bin1001001001110…
…1111100100101
32200020200222102
42102131330211
534312130220
63450541445
7644233526
oct222357445
980220872
1038395685
111a745279
1210a37885
137c54553
14515684d
153586775
hex249df25

38395685 has 8 divisors (see below), whose sum is σ = 46108440. Its totient is φ = 30694144.

The previous prime is 38395667. The next prime is 38395697. The reversal of 38395685 is 58659383.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 38353249 = 206^2 + 6193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38395685 - 28 = 38395429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10361 + ... + 13569.

It is an arithmetic number, because the mean of its divisors is an integer number (5763555).

Almost surely, 238395685 is an apocalyptic number.

It is an amenable number.

38395685 is a deficient number, since it is larger than the sum of its proper divisors (7712755).

38395685 is a wasteful number, since it uses less digits than its factorization.

38395685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607.

The product of its digits is 777600, while the sum is 47.

The square root of 38395685 is about 6196.4251790851. The cubic root of 38395685 is about 337.3604288003.

The spelling of 38395685 in words is "thirty-eight million, three hundred ninety-five thousand, six hundred eighty-five".

Divisors: 1 5 2393 3209 11965 16045 7679137 38395685