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38189135 = 57637827
BaseRepresentation
bin1001000110101…
…1100001001111
32122212012122102
42101223201033
534234023020
63442305315
7642413405
oct221534117
978765572
1038189135
111a614076
121095823b
137bb152a
145101475
153545475
hex246b84f

38189135 has 4 divisors (see below), whose sum is σ = 45826968. Its totient is φ = 30551304.

The previous prime is 38189119. The next prime is 38189149. The reversal of 38189135 is 53198183.

38189135 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: 53198183 = 131406093.

It is a cyclic number.

It is not a de Polignac number, because 38189135 - 24 = 38189119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3818909 + ... + 3818918.

It is an arithmetic number, because the mean of its divisors is an integer number (11456742).

Almost surely, 238189135 is an apocalyptic number.

38189135 is a deficient number, since it is larger than the sum of its proper divisors (7637833).

38189135 is an equidigital number, since it uses as much as digits as its factorization.

38189135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637832.

The product of its digits is 25920, while the sum is 38.

The square root of 38189135 is about 6179.7358357781. The cubic root of 38189135 is about 336.7543960940.

It can be divided in two parts, 38189 and 135, that multiplied together give a palindrome (5155515).

The spelling of 38189135 in words is "thirty-eight million, one hundred eighty-nine thousand, one hundred thirty-five".

Divisors: 1 5 7637827 38189135