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38885329 = 75555047
BaseRepresentation
bin1001010001010…
…1011111010001
32201011120122101
42110111133101
534423312304
63505240401
7651343210
oct224253721
981146571
1038885329
111aa4a13a
1211033101
138096392
145243077
1536318a4
hex25157d1

38885329 has 4 divisors (see below), whose sum is σ = 44440384. Its totient is φ = 33330276.

The previous prime is 38885321. The next prime is 38885453. The reversal of 38885329 is 92358883.

It is a happy number.

38885329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92358883 = 432147881.

It is not a de Polignac number, because 38885329 - 23 = 38885321 is a prime.

It is a super-2 number, since 2×388853292 = 3024137622876482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38885321) 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 3 ways as a sum of consecutive naturals, for example, 2777517 + ... + 2777530.

It is an arithmetic number, because the mean of its divisors is an integer number (11110096).

Almost surely, 238885329 is an apocalyptic number.

It is an amenable number.

38885329 is a deficient number, since it is larger than the sum of its proper divisors (5555055).

38885329 is an equidigital number, since it uses as much as digits as its factorization.

38885329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555054.

The product of its digits is 414720, while the sum is 46.

The square root of 38885329 is about 6235.8102119933. The cubic root of 38885329 is about 338.7884474092.

The spelling of 38885329 in words is "thirty-eight million, eight hundred eighty-five thousand, three hundred twenty-nine".

Divisors: 1 7 5555047 38885329