Search a number
-
+
1231032233 = 13931128477
BaseRepresentation
bin100100101100000…
…0000111110101001
310011210101220202102
41021120000332221
510010121012413
6322053143145
742335413154
oct11130007651
93153356672
101231032233
11581981812
122a432aab5
1316806b252
14b96cac9b
157311a458
hex49600fa9

1231032233 has 8 divisors (see below), whose sum is σ = 1243919040. Its totient is φ = 1218203280.

The previous prime is 1231032193. The next prime is 1231032259. The reversal of 1231032233 is 3322301321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231032233 - 216 = 1230966697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231032263) 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 7 ways as a sum of consecutive naturals, for example, 28991 + ... + 57467.

It is an arithmetic number, because the mean of its divisors is an integer number (155489880).

Almost surely, 21231032233 is an apocalyptic number.

It is an amenable number.

1231032233 is a deficient number, since it is larger than the sum of its proper divisors (12886807).

1231032233 is a wasteful number, since it uses less digits than its factorization.

1231032233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28927.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231032233 is about 35086.0689305599. The cubic root of 1231032233 is about 1071.7409086600.

Adding to 1231032233 its reverse (3322301321), we get a palindrome (4553333554).

The spelling of 1231032233 in words is "one billion, two hundred thirty-one million, thirty-two thousand, two hundred thirty-three".

Divisors: 1 139 311 28477 43229 3958303 8856347 1231032233