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38398069 = 1912715913
BaseRepresentation
bin1001001001111…
…0100001110101
32200020211020201
42102132201311
534312214234
63451000501
7644243503
oct222364165
980224221
1038398069
111a747046
1210a39131
137c55668
145157673
153587314
hex249e875

38398069 has 8 divisors (see below), whose sum is σ = 40739840. Its totient is φ = 36088416.

The previous prime is 38398049. The next prime is 38398103. The reversal of 38398069 is 96089383.

38398069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38398069 - 217 = 38266997 is a prime.

It is a super-2 number, since 2×383980692 = 2948823405857522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38398039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5544 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (5092480).

Almost surely, 238398069 is an apocalyptic number.

It is an amenable number.

38398069 is a deficient number, since it is larger than the sum of its proper divisors (2341771).

38398069 is a wasteful number, since it uses less digits than its factorization.

38398069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16059.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 38398069 is about 6196.6175450805. The cubic root of 38398069 is about 337.3674109270.

The spelling of 38398069 in words is "thirty-eight million, three hundred ninety-eight thousand, sixty-nine".

Divisors: 1 19 127 2413 15913 302347 2020951 38398069