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38386209 = 341312083
BaseRepresentation
bin1001001001101…
…1101000100001
32200020012222110
42102123220201
534311324314
63450425533
7644164101
oct222335041
980205873
1038386209
111a739144
1210a322a9
137c50144
145153201
153583a59
hex249ba21

38386209 has 8 divisors (see below), whose sum is σ = 52430112. Its totient is φ = 24966560.

The previous prime is 38386199. The next prime is 38386211. The reversal of 38386209 is 90268383.

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 38386209 - 24 = 38386193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38386219) 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 7 ways as a sum of consecutive naturals, for example, 155919 + ... + 156164.

It is an arithmetic number, because the mean of its divisors is an integer number (6553764).

Almost surely, 238386209 is an apocalyptic number.

It is an amenable number.

38386209 is a deficient number, since it is larger than the sum of its proper divisors (14043903).

38386209 is a wasteful number, since it uses less digits than its factorization.

38386209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312127.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 38386209 is about 6195.6604974772. The cubic root of 38386209 is about 337.3326731601.

The spelling of 38386209 in words is "thirty-eight million, three hundred eighty-six thousand, two hundred nine".

Divisors: 1 3 41 123 312083 936249 12795403 38386209