Search a number
-
+
8138382 = 237193771
BaseRepresentation
bin11111000010111010001110
3120022110202120
4133002322032
54040412012
6450233410
7126114030
oct37027216
916273676
108138382
11465953a
122885866
1318bc415
14111bc50
15aab58c
hex7c2e8e

8138382 has 16 divisors (see below), whose sum is σ = 18602112. Its totient is φ = 2325240.

The previous prime is 8138371. The next prime is 8138387. The reversal of 8138382 is 2838318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138387) 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 7 ways as a sum of consecutive naturals, for example, 96844 + ... + 96927.

It is an arithmetic number, because the mean of its divisors is an integer number (1162632).

Almost surely, 28138382 is an apocalyptic number.

8138382 is an abundant number, since it is smaller than the sum of its proper divisors (10463730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8138382 is a wasteful number, since it uses less digits than its factorization.

8138382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193783.

The product of its digits is 9216, while the sum is 33.

The square root of 8138382 is about 2852.7849550921. The cubic root of 8138382 is about 201.1465973442.

The spelling of 8138382 in words is "eight million, one hundred thirty-eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 193771 387542 581313 1162626 1356397 2712794 4069191 8138382