Search a number
-
+
20301303230221 = 136263249343559
BaseRepresentation
bin1001001110110110000111…
…11101111010111100001101
32122212210012201122111011211
410213123003331322330031
510130104032111331341
6111102142344014421
74163502135150256
oct447330375727415
978783181574154
1020301303230221
116517809468502
12233a641461411
13b4353510b990
145028344c1b2d
1525313bb72181
hex1276c3f7af0d

20301303230221 has 8 divisors (see below), whose sum is σ = 21866432837760. Its totient is φ = 18736672322352.

The previous prime is 20301303230213. The next prime is 20301303230249. The reversal of 20301303230221 is 12203230310302.

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 20301303230221 - 23 = 20301303230213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301303230192 and 20301303230201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301303230261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124590361 + ... + 124753198.

It is an arithmetic number, because the mean of its divisors is an integer number (2733304104720).

Almost surely, 220301303230221 is an apocalyptic number.

It is an amenable number.

20301303230221 is a deficient number, since it is larger than the sum of its proper divisors (1565129607539).

20301303230221 is a wasteful number, since it uses less digits than its factorization.

20301303230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249349835.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20301303230221 its reverse (12203230310302), we get a palindrome (32504533540523).

The spelling of 20301303230221 in words is "twenty trillion, three hundred one billion, three hundred three million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 13 6263 81419 249343559 3241466267 1561638710017 20301303230221