Search a number
-
+
202022122220 = 22535099287789
BaseRepresentation
bin1011110000100101110…
…1001111001011101100
3201022110021021010200222
42330021131033023230
511302220130402340
6232450243110512
720411203464032
oct2741135171354
9638407233628
10202022122220
117874a248596
12331a0972438
13160872408b9
149ac6898552
1553c5c568b5
hex2f0974f2ec

202022122220 has 24 divisors (see below), whose sum is σ = 424260018000. Its totient is φ = 80806265792.

The previous prime is 202022122193. The next prime is 202022122223. The reversal of 202022122220 is 22221220202.

It is not an unprimeable number, because it can be changed into a prime (202022122223) 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, 558086 + ... + 845874.

It is an arithmetic number, because the mean of its divisors is an integer number (17677500750).

Almost surely, 2202022122220 is an apocalyptic number.

202022122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202022122220 is an abundant number, since it is smaller than the sum of its proper divisors (222237895780).

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

202022122220 is a wasteful number, since it uses less digits than its factorization.

202022122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322897 (or 322895 counting only the distinct ones).

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

Adding to 202022122220 its reverse (22221220202), we get a palindrome (224243342422).

The spelling of 202022122220 in words is "two hundred two billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 35099 70198 140396 175495 287789 350990 575578 701980 1151156 1438945 2877890 5755780 10101106111 20202212222 40404424444 50505530555 101011061110 202022122220