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20013132200 = 2352100065661
BaseRepresentation
bin10010101000111000…
…000010100110101000
31220122202020110020112
4102220320002212220
5311441330212300
613105514513452
71305641550125
oct225070024650
956582213215
1020013132200
11853a989486
123a66435888
131b6c325079
14d7bd4374c
157c1eb1e35
hex4a8e029a8

20013132200 has 24 divisors (see below), whose sum is σ = 46530532830. Its totient is φ = 8005252800.

The previous prime is 20013132199. The next prime is 20013132221. The reversal of 20013132200 is 223131002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8180478916 + 11832653284 = 90446^2 + 108778^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50032631 + ... + 50033030.

Almost surely, 220013132200 is an apocalyptic number.

20013132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013132200 is an abundant number, since it is smaller than the sum of its proper divisors (26517400630).

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

20013132200 is a wasteful number, since it uses less digits than its factorization.

20013132200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100065677 (or 100065668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20013132200 its reverse (223131002), we get a palindrome (20236263202).

The spelling of 20013132200 in words is "twenty billion, thirteen million, one hundred thirty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 100065661 200131322 400262644 500328305 800525288 1000656610 2001313220 2501641525 4002626440 5003283050 10006566100 20013132200