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202321030220 = 225139344921101
BaseRepresentation
bin1011110001101101000…
…1011110110001001100
3201100020002201020101122
42330123101132301030
511303323140431340
6232540041500112
720421463244651
oct2743321366114
9640202636348
10202321030220
1178892a465a1
1233264aa1638
131610414863a
149b14465c28
1553e20ebdb5
hex2f1b45ec4c

202321030220 has 48 divisors (see below), whose sum is σ = 428075172000. Its totient is φ = 80319091200.

The previous prime is 202321030189. The next prime is 202321030243. The reversal of 202321030220 is 22030123202.

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, 9577670 + ... + 9598770.

It is an arithmetic number, because the mean of its divisors is an integer number (8918232750).

Almost surely, 2202321030220 is an apocalyptic number.

202321030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202321030220 is an abundant number, since it is smaller than the sum of its proper divisors (225754141780).

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

202321030220 is a wasteful number, since it uses less digits than its factorization.

202321030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24698 (or 24696 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 202321030220 its reverse (22030123202), we get a palindrome (224351153422).

The spelling of 202321030220 in words is "two hundred two billion, three hundred twenty-one million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 3449 6898 13796 17245 21101 34490 42202 68980 84404 105505 211010 422020 479411 958822 1917644 2397055 2933039 4794110 5866078 9588220 11732156 14665195 29330390 58660780 72777349 145554698 291109396 363886745 727773490 1455546980 10116051511 20232103022 40464206044 50580257555 101160515110 202321030220