Search a number
-
+
210323013020020 = 22567353274442989
BaseRepresentation
bin101111110100100110100100…
…011110101010100101110100
31000120200200110101211212211201
4233310212210132222211310
5210031413012313120040
62023153020332342244
762205223221232345
oct5764464436524564
91016620411755751
10210323013020020
116101954181617a
121b70a013614984
1390484b4c134c4
1439d198c3b20cc
15194aeb6bc3a9a
hexbf49a47aa974

210323013020020 has 48 divisors (see below), whose sum is σ = 448283331256320. Its totient is φ = 82871180878464.

The previous prime is 210323013019993. The next prime is 210323013020041. The reversal of 210323013020020 is 20020310323012.

It is a self number, because there is not a number n which added to its sum of digits gives 210323013020020.

It is a congruent number.

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, 45116686 + ... + 49559674.

It is an arithmetic number, because the mean of its divisors is an integer number (9339236067840).

Almost surely, 2210323013020020 is an apocalyptic number.

210323013020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210323013020020 is an abundant number, since it is smaller than the sum of its proper divisors (237960318236300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210323013020020 is a wasteful number, since it uses less digits than its factorization.

210323013020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478392 (or 4478390 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 210323013020020 its reverse (20020310323012), we get a palindrome (230343323343032).

The spelling of 210323013020020 in words is "two hundred ten trillion, three hundred twenty-three billion, thirteen million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 35327 70654 141308 176635 353270 706540 2366909 4442989 4733818 8885978 9467636 11834545 17771956 22214945 23669090 44429890 47338180 88859780 297680263 595360526 1190721052 1488401315 2976802630 5953605260 156957472403 313914944806 627829889612 784787362015 1569574724030 3139149448060 10516150651001 21032301302002 42064602604004 52580753255005 105161506510010 210323013020020