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120320212220 = 22513462770047
BaseRepresentation
bin111000000001110100…
…1001011110011111100
3102111120022201002002022
41300003221023303330
53432403433242340
6131135131415312
711456434633505
oct1600351136374
9374508632068
10120320212220
114703369431a
121b39abb4538
13b466641060
145b75a9bbac
1531e31583b5
hex1c03a4bcfc

120320212220 has 24 divisors (see below), whose sum is σ = 272108788224. Its totient is φ = 44425924416.

The previous prime is 120320212171. The next prime is 120320212249. The reversal of 120320212220 is 22212023021.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 231384764 + ... + 231385283.

It is an arithmetic number, because the mean of its divisors is an integer number (11337866176).

Almost surely, 2120320212220 is an apocalyptic number.

120320212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120320212220 is an abundant number, since it is smaller than the sum of its proper divisors (151788576004).

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

120320212220 is a wasteful number, since it uses less digits than its factorization.

120320212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462770069 (or 462770067 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 120320212220 its reverse (22212023021), we get a palindrome (142532235241).

The spelling of 120320212220 in words is "one hundred twenty billion, three hundred twenty million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 462770047 925540094 1851080188 2313850235 4627700470 6016010611 9255400940 12032021222 24064042444 30080053055 60160106110 120320212220