Search a number
-
+
230302121231221 = 13294314206533911
BaseRepresentation
bin110100010111010101100100…
…001000001000001101110101
31010012102200000210201112222221
4310113111210020020031311
5220141232221013344341
62133451200043122341
766336531154061104
oct6427254410101565
91105380023645887
10230302121231221
1167421643520056
12219b61165133b1
139b67520b3c520
1440c2979b2803b
151b95a47884ed1
hexd17564208375

230302121231221 has 16 divisors (see below), whose sum is σ = 262536746693760. Its totient is φ = 200482606537920.

The previous prime is 230302121231131. The next prime is 230302121231227. The reversal of 230302121231221 is 122132121203032.

It is a cyclic number.

It is not a de Polignac number, because 230302121231221 - 245 = 195117749142389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230302121231227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7103250745 + ... + 7103283166.

It is an arithmetic number, because the mean of its divisors is an integer number (16408546668360).

Almost surely, 2230302121231221 is an apocalyptic number.

It is an amenable number.

230302121231221 is a deficient number, since it is larger than the sum of its proper divisors (32234625462539).

230302121231221 is a wasteful number, since it uses less digits than its factorization.

230302121231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14206533996.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 230302121231221 its reverse (122132121203032), we get a palindrome (352434242434253).

The spelling of 230302121231221 in words is "two hundred thirty trillion, three hundred two billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 13 29 43 377 559 1247 16211 14206533911 184684940843 411989483419 610880958173 5355863284447 7941452456249 17715547787017 230302121231221