Search a number
-
+
221311310042130 = 23571195805761923
BaseRepresentation
bin110010010100100000001110…
…000001010001010000010010
31002000121011011201021200112120
4302110200032001101100102
5213001431030332322010
62102405002352435110
764421133400646640
oct6224401601212022
91060534151250476
10221311310042130
1164575665a43630
12209a3745b48a96
13966474a89a269
143c9174b566190
151a8bc35c2de70
hexc9480e051412

221311310042130 has 64 divisors (see below), whose sum is σ = 662209426418688. Its totient is φ = 45986765722560.

The previous prime is 221311310042129. The next prime is 221311310042161. The reversal of 221311310042130 is 31240013113122.

It is a self number, because there is not a number n which added to its sum of digits gives 221311310042130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47902878652 + ... + 47902883271.

It is an arithmetic number, because the mean of its divisors is an integer number (10347022287792).

Almost surely, 2221311310042130 is an apocalyptic number.

221311310042130 is an abundant number, since it is smaller than the sum of its proper divisors (440898116376558).

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

221311310042130 is a wasteful number, since it uses less digits than its factorization.

221311310042130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95805761951.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 221311310042130 its reverse (31240013113122), we get a palindrome (252551323155252).

The spelling of 221311310042130 in words is "two hundred twenty-one trillion, three hundred eleven billion, three hundred ten million, forty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 2310 95805761923 191611523846 287417285769 479028809615 574834571538 670640333461 958057619230 1053863381153 1341280666922 1437086428845 2011921000383 2107726762306 2874172857690 3161590143459 3353201667305 4023842000766 5269316905765 6323180286918 6706403334610 7377043668071 10059605001915 10538633811530 14754087336142 15807950717295 20119210003830 22131131004213 31615901434590 36885218340355 44262262008426 73770436680710 110655655021065 221311310042130