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202120330220 = 22512897840199
BaseRepresentation
bin1011110000111101001…
…1110111101111101100
3201022201010001121202022
42330033103313233230
511302420301031340
6232504112045312
720413505313524
oct2741723675754
9638633047668
10202120330220
117879a725726
1233209833838
13160a16a7843
149ad5940684
1553ce6a53b5
hex2f0f4f7bec

202120330220 has 24 divisors (see below), whose sum is σ = 424782036000. Its totient is φ = 80785400192.

The previous prime is 202120330207. The next prime is 202120330241. The reversal of 202120330220 is 22033021202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894320 + ... + 3945879.

It is an arithmetic number, because the mean of its divisors is an integer number (17699251500).

Almost surely, 2202120330220 is an apocalyptic number.

202120330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120330220 is an abundant number, since it is smaller than the sum of its proper divisors (222661705780).

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

202120330220 is a wasteful number, since it uses less digits than its factorization.

202120330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841497 (or 7841495 counting only the distinct ones).

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

Adding to 202120330220 its reverse (22033021202), we get a palindrome (224153351422).

The spelling of 202120330220 in words is "two hundred two billion, one hundred twenty million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1289 2578 5156 6445 12890 25780 7840199 15680398 31360796 39200995 78401990 156803980 10106016511 20212033022 40424066044 50530082555 101060165110 202120330220