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38389937 = 194434561
BaseRepresentation
bin1001001001110…
…0100010110001
32200020102002112
42102130202301
534311434222
63450455105
7644211005
oct222344261
980212075
1038389937
111a740a23
1210a34495
137c51a51
145154705
153584be2
hex249c8b1

38389937 has 8 divisors (see below), whose sum is σ = 40510560. Its totient is φ = 36279360.

The previous prime is 38389931. The next prime is 38389957. The reversal of 38389937 is 73998383.

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

It is not a de Polignac number, because 38389937 - 210 = 38388913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38389931) 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, 6137 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (5063820).

Almost surely, 238389937 is an apocalyptic number.

It is an amenable number.

38389937 is a deficient number, since it is larger than the sum of its proper divisors (2120623).

38389937 is a wasteful number, since it uses less digits than its factorization.

38389937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023.

The product of its digits is 979776, while the sum is 50.

The square root of 38389937 is about 6195.9613459091. The cubic root of 38389937 is about 337.3435931887.

The spelling of 38389937 in words is "thirty-eight million, three hundred eighty-nine thousand, nine hundred thirty-seven".

Divisors: 1 19 443 4561 8417 86659 2020523 38389937