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220202120220020 = 225791312491742697
BaseRepresentation
bin110010000100010111001101…
…001001111000110101110100
31001212200010011100221120210222
4302010113031021320311310
5212330242420234020040
62100155242453233512
764245035550014051
oct6204271511706564
91055603140846728
10220202120220020
1164188216230234
1220844790632898
1395b3c80c0c233
143c53ba7794028
151a6ce685a7bb5
hexc845cd278d74

220202120220020 has 96 divisors (see below), whose sum is σ = 471882555809280. Its totient is φ = 86296554040320.

The previous prime is 220202120220013. The next prime is 220202120220031. The reversal of 220202120220020 is 20022021202022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5157299312 + ... + 5157342008.

It is an arithmetic number, because the mean of its divisors is an integer number (4915443289680).

Almost surely, 2220202120220020 is an apocalyptic number.

220202120220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202120220020 is an abundant number, since it is smaller than the sum of its proper divisors (251680435589260).

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

220202120220020 is a wasteful number, since it uses less digits than its factorization.

220202120220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67833 (or 67831 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 220202120220020 its reverse (20022021202022), we get a palindrome (240224141422042).

The spelling of 220202120220020 in words is "two hundred twenty trillion, two hundred two billion, one hundred twenty million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 79 131 158 262 316 395 524 655 790 1310 1580 2620 10349 20698 24917 41396 42697 49834 51745 85394 99668 103490 124585 170788 206980 213485 249170 426970 498340 853940 1968443 3264127 3373063 3936886 5593307 6528254 6746126 7873772 9842215 11186614 13056508 13492252 16320635 16865315 19684430 22373228 27966535 32641270 33730630 39368860 55933070 65282540 67461260 111866140 257866033 441871253 515732066 883742506 1031464132 1063881149 1289330165 1767485012 2127762298 2209356265 2578660330 4255524596 4418712530 5157320660 5319405745 8837425060 10638811490 21277622980 84046610771 139368430519 168093221542 278736861038 336186443084 420233053855 557473722076 696842152595 840466107710 1393684305190 1680932215420 2787368610380 11010106011001 22020212022002 44040424044004 55050530055005 110101060110010 220202120220020