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20323011100 = 2252729032873
BaseRepresentation
bin10010111011010110…
…001000101000011100
31221110100022221011211
4102323112020220130
5313110142323400
613200344354204
71316423513140
oct227326105034
957410287154
1020323011100
1186898a0047
123b32175964
131bbb5a1572
14dab169220
157de2c2dba
hex4bb588a1c

20323011100 has 36 divisors (see below), whose sum is σ = 50401069264. Its totient is φ = 6967889280.

The previous prime is 20323011011. The next prime is 20323011109. The reversal of 20323011100 is 111032302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323011109) 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, 14515737 + ... + 14517136.

Almost surely, 220323011100 is an apocalyptic number.

20323011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323011100 is an abundant number, since it is smaller than the sum of its proper divisors (30078058164).

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

20323011100 is a wasteful number, since it uses less digits than its factorization.

20323011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29032894 (or 29032887 counting only the distinct ones).

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

Adding to 20323011100 its reverse (111032302), we get a palindrome (20434043402).

The spelling of 20323011100 in words is "twenty billion, three hundred twenty-three million, eleven thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 29032873 58065746 116131492 145164365 203230111 290328730 406460222 580657460 725821825 812920444 1016150555 1451643650 2032301110 2903287300 4064602220 5080752775 10161505550 20323011100