Search a number
-
+
1230203204 = 22307550801
BaseRepresentation
bin100100101010011…
…0110100101000100
310011201211210112122
41021110312211010
510004413000304
6322023305112
742325361156
oct11124664504
93151753478
101230203204
1158146596a
122a3bab198
13167b3aab9
14b9552ad6
15730049be
hex49536944

1230203204 has 6 divisors (see below), whose sum is σ = 2152855614. Its totient is φ = 615101600.

The previous prime is 1230203201. The next prime is 1230203209. The reversal of 1230203204 is 4023020321.

It can be written as a sum of positive squares in only one way, i.e., 1069420804 + 160782400 = 32702^2 + 12680^2 .

It is not an unprimeable number, because it can be changed into a prime (1230203201) 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 as a sum of consecutive naturals, namely, 153775397 + ... + 153775404.

It is an arithmetic number, because the mean of its divisors is an integer number (358809269).

Almost surely, 21230203204 is an apocalyptic number.

It is an amenable number.

1230203204 is a deficient number, since it is larger than the sum of its proper divisors (922652410).

1230203204 is a wasteful number, since it uses less digits than its factorization.

1230203204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307550805 (or 307550803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1230203204 is about 35074.2527219041. The cubic root of 1230203204 is about 1071.5002694640.

Adding to 1230203204 its reverse (4023020321), we get a palindrome (5253223525).

The spelling of 1230203204 in words is "one billion, two hundred thirty million, two hundred three thousand, two hundred four".

Divisors: 1 2 4 307550801 615101602 1230203204