Search a number
-
+
230144243305 = 5179727913189
BaseRepresentation
bin1101011001010110101…
…0100111011001101001
3211000001010222220111011
43112111222213121221
512232313411241210
6253420553503521
722425121535164
oct3262552473151
9730033886434
10230144243305
1189670475379
123872aa11ba1
1318919548b32
14b1d3756adb
155ebea91d8a
hex3595aa7669

230144243305 has 16 divisors (see below), whose sum is σ = 295433202960. Its totient is φ = 171498627072.

The previous prime is 230144243297. The next prime is 230144243311. The reversal of 230144243305 is 503342441032.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5035747369 + 225108495936 = 70963^2 + 474456^2 .

It is a cyclic number.

It is not a de Polignac number, because 230144243305 - 23 = 230144243297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13948350 + ... + 13964839.

It is an arithmetic number, because the mean of its divisors is an integer number (18464575185).

Almost surely, 2230144243305 is an apocalyptic number.

It is an amenable number.

230144243305 is a deficient number, since it is larger than the sum of its proper divisors (65288959655).

230144243305 is a wasteful number, since it uses less digits than its factorization.

230144243305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27913308.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 230144243305 its reverse (503342441032), we get a palindrome (733486684337).

The spelling of 230144243305 in words is "two hundred thirty billion, one hundred forty-four million, two hundred forty-three thousand, three hundred five".

Divisors: 1 5 17 85 97 485 1649 8245 27913189 139565945 474524213 2372621065 2707579333 13537896665 46028848661 230144243305