Search a number
-
+
308227 = 1718131
BaseRepresentation
bin1001011010000000011
3120122210211
41023100003
534330402
610334551
72422423
oct1132003
9518724
10308227
111a0637
1212a457
13aa3aa
1480483
15614d7
hex4b403

308227 has 4 divisors (see below), whose sum is σ = 326376. Its totient is φ = 290080.

The previous prime is 308219. The next prime is 308249. The reversal of 308227 is 722803.

It is a happy number.

308227 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722803 = 2692687.

It is a cyclic number.

It is not a de Polignac number, because 308227 - 23 = 308219 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 308198 and 308207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9049 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (81594).

2308227 is an apocalyptic number.

308227 is a deficient number, since it is larger than the sum of its proper divisors (18149).

308227 is a wasteful number, since it uses less digits than its factorization.

308227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 308227 is about 555.1819521562. The cubic root of 308227 is about 67.5497210250.

It can be divided in two parts, 308 and 227, that added together give a palindrome (535).

The spelling of 308227 in words is "three hundred eight thousand, two hundred twenty-seven".

Divisors: 1 17 18131 308227