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120100302220 = 22517220778599
BaseRepresentation
bin110111111011010001…
…0010010110110001100
3102110222222220111021111
41233312202102312030
53431431134132340
6131101234141404
711451124503463
oct1576642226614
9373888814244
10120100302220
1146a30542718
121b339421864
13b42cc055b2
145b547b59da
1531cdbb9aea
hex1bf6892d8c

120100302220 has 36 divisors (see below), whose sum is σ = 267919268400. Its totient is φ = 45214229248.

The previous prime is 120100302209. The next prime is 120100302227. The reversal of 120100302220 is 22203001021.

It is a self number, because there is not a number n which added to its sum of digits gives 120100302220.

It is not an unprimeable number, because it can be changed into a prime (120100302227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10383520 + ... + 10395079.

It is an arithmetic number, because the mean of its divisors is an integer number (7442201900).

Almost surely, 2120100302220 is an apocalyptic number.

120100302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100302220 is an abundant number, since it is smaller than the sum of its proper divisors (147818966180).

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

120100302220 is a wasteful number, since it uses less digits than its factorization.

120100302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20778642 (or 20778623 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 120100302220 its reverse (22203001021), we get a palindrome (142303303241).

The spelling of 120100302220 in words is "one hundred twenty billion, one hundred million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 1156 1445 2890 5780 20778599 41557198 83114396 103892995 207785990 353236183 415571980 706472366 1412944732 1766180915 3532361830 6005015111 7064723660 12010030222 24020060444 30025075555 60050151110 120100302220