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38429111 = 75489873
BaseRepresentation
bin1001001010011…
…0000110110111
32200022101211102
42102212012313
534314212421
63451400315
7644433140
oct222460667
980271742
1038429111
111a7683a6
1210a5309b
137c66826
145164ac7
15359160b
hex24a61b7

38429111 has 4 divisors (see below), whose sum is σ = 43918992. Its totient is φ = 32939232.

The previous prime is 38429107. The next prime is 38429173. The reversal of 38429111 is 11192483.

38429111 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: 11192483 = 79141677.

It is a cyclic number.

It is not a de Polignac number, because 38429111 - 22 = 38429107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38429011) 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, 2744930 + ... + 2744943.

It is an arithmetic number, because the mean of its divisors is an integer number (10979748).

Almost surely, 238429111 is an apocalyptic number.

38429111 is a deficient number, since it is larger than the sum of its proper divisors (5489881).

38429111 is an equidigital number, since it uses as much as digits as its factorization.

38429111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489880.

The product of its digits is 1728, while the sum is 29.

The square root of 38429111 is about 6199.1217926413. The cubic root of 38429111 is about 337.4582986428.

The spelling of 38429111 in words is "thirty-eight million, four hundred twenty-nine thousand, one hundred eleven".

Divisors: 1 7 5489873 38429111