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1331120200 = 23528238087
BaseRepresentation
bin100111101010111…
…0100100001001000
310102202201220122011
41033111310201020
510211231321300
6340030305304
744662222624
oct11725644110
93382656564
101331120200
11623423343
12311958234
13182a12ab7
14c8b02184
157bcdaeba
hex4f574848

1331120200 has 48 divisors (see below), whose sum is σ = 3098998080. Its totient is φ = 531735360.

The previous prime is 1331120173. The next prime is 1331120201. The reversal of 1331120200 is 20211331.

It is not an unprimeable number, because it can be changed into a prime (1331120201) 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, 160557 + ... + 168643.

It is an arithmetic number, because the mean of its divisors is an integer number (64562460).

Almost surely, 21331120200 is an apocalyptic number.

1331120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331120200 is an abundant number, since it is smaller than the sum of its proper divisors (1767877880).

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

1331120200 is a wasteful number, since it uses less digits than its factorization.

1331120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926 (or 8917 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1331120200 is about 36484.5200050652. The cubic root of 1331120200 is about 1100.0331119509.

Adding to 1331120200 its reverse (20211331), we get a palindrome (1351331531).

The spelling of 1331120200 in words is "one billion, three hundred thirty-one million, one hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 823 1646 3292 4115 6584 8087 8230 16174 16460 20575 32348 32920 40435 41150 64696 80870 82300 161740 164600 202175 323480 404350 808700 1617400 6655601 13311202 26622404 33278005 53244808 66556010 133112020 166390025 266224040 332780050 665560100 1331120200