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1330122220 = 22579500873
BaseRepresentation
bin100111101001000…
…0000110111101100
310102200212012122221
41033102000313230
510211002402340
6335553045124
744650565230
oct11722006754
93380765587
101330122220
11622901569
123115567a4
1318275378b
14c89225c0
157bb9044a
hex4f480dec

1330122220 has 24 divisors (see below), whose sum is σ = 3192293664. Its totient is φ = 456041856.

The previous prime is 1330122203. The next prime is 1330122229. The reversal of 1330122220 is 222210331.

It is a junction number, because it is equal to n+sod(n) for n = 1330122194 and 1330122203.

It is not an unprimeable number, because it can be changed into a prime (1330122229) 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, 4750297 + ... + 4750576.

It is an arithmetic number, because the mean of its divisors is an integer number (133012236).

Almost surely, 21330122220 is an apocalyptic number.

1330122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330122220 is an abundant number, since it is smaller than the sum of its proper divisors (1862171444).

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

1330122220 is a wasteful number, since it uses less digits than its factorization.

1330122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500889 (or 9500887 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1330122220 is about 36470.8406812895. The cubic root of 1330122220 is about 1099.7581341507.

Adding to 1330122220 its reverse (222210331), we get a palindrome (1552332551).

The spelling of 1330122220 in words is "one billion, three hundred thirty million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 9500873 19001746 38003492 47504365 66506111 95008730 133012222 190017460 266024444 332530555 665061110 1330122220