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38023111 = 75431873
BaseRepresentation
bin1001000100001…
…0111111000111
32122112202220101
42101002333013
534213214421
63434544531
7641122360
oct221027707
978482811
1038023111
111a510365
1210898147
137b53aa9
14509ab67
153511191
hex2442fc7

38023111 has 4 divisors (see below), whose sum is σ = 43454992. Its totient is φ = 32591232.

The previous prime is 38023109. The next prime is 38023121. The reversal of 38023111 is 11132083.

38023111 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.

It is a cyclic number.

It is not a de Polignac number, because 38023111 - 21 = 38023109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38023121) 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, 2715930 + ... + 2715943.

It is an arithmetic number, because the mean of its divisors is an integer number (10863748).

Almost surely, 238023111 is an apocalyptic number.

38023111 is a deficient number, since it is larger than the sum of its proper divisors (5431881).

38023111 is an equidigital number, since it uses as much as digits as its factorization.

38023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431880.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 38023111 is about 6166.2882676696. The cubic root of 38023111 is about 336.2656835459.

Adding to 38023111 its reverse (11132083), we get a palindrome (49155194).

The spelling of 38023111 in words is "thirty-eight million, twenty-three thousand, one hundred eleven".

Divisors: 1 7 5431873 38023111