Search a number
-
+
308196229 = 1128017839
BaseRepresentation
bin10010010111101…
…011001110000101
3210110220222202011
4102113223032011
51112344234404
650325414221
710431424165
oct2227531605
9713828664
10308196229
11148a72430
128726a371
134bb0a643
142cd085a5
151c0cc604
hex125eb385

308196229 has 4 divisors (see below), whose sum is σ = 336214080. Its totient is φ = 280178380.

The previous prime is 308196209. The next prime is 308196269. The reversal of 308196229 is 922691803.

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: 922691803 = 1183881073.

It is a cyclic number.

It is not a de Polignac number, because 308196229 - 27 = 308196101 is a prime.

It is a Smith number, since the sum of its digits (40) 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 = 308196191 and 308196200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308196209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14008909 + ... + 14008930.

It is an arithmetic number, because the mean of its divisors is an integer number (84053520).

Almost surely, 2308196229 is an apocalyptic number.

It is an amenable number.

308196229 is a deficient number, since it is larger than the sum of its proper divisors (28017851).

308196229 is a wasteful number, since it uses less digits than its factorization.

308196229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28017850.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 308196229 is about 17555.5184771057. The cubic root of 308196229 is about 675.4747306962.

The spelling of 308196229 in words is "three hundred eight million, one hundred ninety-six thousand, two hundred twenty-nine".

Divisors: 1 11 28017839 308196229