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202022222020 = 225101775712893
BaseRepresentation
bin1011110000100101110…
…1100111100011000100
3201022110021110012121021
42330021131213203010
511302220142101040
6232450245200524
720411204361013
oct2741135474304
9638407405537
10202022222020
117874a306573
12331a0a00144
1316087277158
149ac68c2a7a
1553c5c7624a
hex2f097678c4

202022222020 has 48 divisors (see below), whose sum is σ = 428535597168. Its totient is φ = 79992281600.

The previous prime is 202022221997. The next prime is 202022222117. The reversal of 202022222020 is 20222220202.

It is a happy number.

202022222020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 38031240256 + 163990981764 = 195016^2 + 404958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202022221985 and 202022222003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15662694 + ... + 15675586.

It is an arithmetic number, because the mean of its divisors is an integer number (8927824941).

Almost surely, 2202022222020 is an apocalyptic number.

202022222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202022222020 is an abundant number, since it is smaller than the sum of its proper divisors (226513375148).

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

202022222020 is a wasteful number, since it uses less digits than its factorization.

202022222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20760 (or 20758 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 202022222020 its reverse (20222220202), we get a palindrome (222244442222).

The spelling of 202022222020 in words is "two hundred two billion, twenty-two million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 7757 12893 15514 25786 31028 38785 51572 64465 77570 128930 155140 257860 783457 1302193 1566914 2604386 3133828 3917285 5208772 6510965 7834570 13021930 15669140 26043860 100011001 200022002 400044004 500055005 1000110010 2000220020 10101111101 20202222202 40404444404 50505555505 101011111010 202022222020