Search a number
-
+
8136313 = 19428227
BaseRepresentation
bin11111000010011001111001
3120022100220221
4133002121321
54040330223
6450220041
7126105013
oct37023171
916270827
108136313
114657a29
122884621
1318bb4b3
14111b1b3
15aaab5d
hex7c2679

8136313 has 4 divisors (see below), whose sum is σ = 8564560. Its totient is φ = 7708068.

The previous prime is 8136307. The next prime is 8136341. The reversal of 8136313 is 3136318.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3136318 = 21568159.

It is a cyclic number.

It is not a de Polignac number, because 8136313 - 25 = 8136281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8136343) 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, 214095 + ... + 214132.

It is an arithmetic number, because the mean of its divisors is an integer number (2141140).

Almost surely, 28136313 is an apocalyptic number.

It is an amenable number.

8136313 is a deficient number, since it is larger than the sum of its proper divisors (428247).

8136313 is a wasteful number, since it uses less digits than its factorization.

8136313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428246.

The product of its digits is 1296, while the sum is 25.

The square root of 8136313 is about 2852.4223039375. The cubic root of 8136313 is about 201.1295502382.

The spelling of 8136313 in words is "eight million, one hundred thirty-six thousand, three hundred thirteen".

Divisors: 1 19 428227 8136313