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20131030300 = 2252375440819
BaseRepresentation
bin10010101111111001…
…110010010100011100
31220221222002022000211
4102233321302110130
5312212020432200
613125325502204
71311602635303
oct225771622434
956858068024
1020131030300
1185a0495027
123a99a11964
131b8a894364
14d8d87343a
157cc4eeaba
hex4afe7251c

20131030300 has 36 divisors (see below), whose sum is σ = 44865001720. Its totient is φ = 7834777920.

The previous prime is 20131030289. The next prime is 20131030303. The reversal of 20131030300 is 303013102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131030303) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2716710 + ... + 2724109.

Almost surely, 220131030300 is an apocalyptic number.

20131030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131030300 is an abundant number, since it is smaller than the sum of its proper divisors (24733971420).

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

20131030300 is a wasteful number, since it uses less digits than its factorization.

20131030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440870 (or 5440863 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20131030300 its reverse (303013102), we get a palindrome (20434043402).

The spelling of 20131030300 in words is "twenty billion, one hundred thirty-one million, thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 100 148 185 370 740 925 1850 3700 5440819 10881638 21763276 27204095 54408190 108816380 136020475 201310303 272040950 402620606 544081900 805241212 1006551515 2013103030 4026206060 5032757575 10065515150 20131030300