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38209011 = 312736337
BaseRepresentation
bin1001000111000…
…0010111110011
32122220012220120
42101300113303
534240142021
63442541323
7642525351
oct221602763
978805816
1038209011
111a627aa5
1210967843
137bba5a9
1451087d1
15354b2c6
hex24705f3

38209011 has 4 divisors (see below), whose sum is σ = 50945352. Its totient is φ = 25472672.

The previous prime is 38208991. The next prime is 38209021. The reversal of 38209011 is 11090283.

38209011 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 an emirpimes, since its reverse is a distinct semiprime: 11090283 = 33696761.

It is a cyclic number.

It is not a de Polignac number, because 38209011 - 223 = 29820403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38209021) 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, 6368166 + ... + 6368171.

It is an arithmetic number, because the mean of its divisors is an integer number (12736338).

Almost surely, 238209011 is an apocalyptic number.

38209011 is a deficient number, since it is larger than the sum of its proper divisors (12736341).

38209011 is a wasteful number, since it uses less digits than its factorization.

38209011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736340.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 38209011 is about 6181.3437859417. The cubic root of 38209011 is about 336.8128086024.

Adding to 38209011 its reverse (11090283), we get a palindrome (49299294).

The spelling of 38209011 in words is "thirty-eight million, two hundred nine thousand, eleven".

Divisors: 1 3 12736337 38209011