Search a number
-
+
8257234 = 24128617
BaseRepresentation
bin11111011111111011010010
3120112111210111
4133133323102
54103212414
6452551534
7130120366
oct37377322
916474714
108257234
11472a867
1229225aa
13193154b
14114d2a6
15ad18c4
hex7dfed2

8257234 has 4 divisors (see below), whose sum is σ = 12385854. Its totient is φ = 4128616.

The previous prime is 8257219. The next prime is 8257237. The reversal of 8257234 is 4327528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4853209 + 3404025 = 2203^2 + 1845^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8257196 and 8257205.

It is not an unprimeable number, because it can be changed into a prime (8257237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064307 + ... + 2064310.

Almost surely, 28257234 is an apocalyptic number.

8257234 is a deficient number, since it is larger than the sum of its proper divisors (4128620).

8257234 is a wasteful number, since it uses less digits than its factorization.

8257234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128619.

The product of its digits is 13440, while the sum is 31.

The square root of 8257234 is about 2873.5403251042. The cubic root of 8257234 is about 202.1210430307.

The spelling of 8257234 in words is "eight million, two hundred fifty-seven thousand, two hundred thirty-four".

Divisors: 1 2 4128617 8257234