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20100132200 = 2352100500661
BaseRepresentation
bin10010101110000011…
…111010110101101000
31220212210221111210202
4102232003322311220
5312131113212300
613122303331332
71311046206341
oct225603726550
956783844722
1020100132200
118585000905
123a8b5b0b48
131b84366665
14d8970d0c8
157c9949ad5
hex4ae0fad68

20100132200 has 24 divisors (see below), whose sum is σ = 46732807830. Its totient is φ = 8040052800.

The previous prime is 20100132179. The next prime is 20100132209. The reversal of 20100132200 is 223100102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19694754244 + 405377956 = 140338^2 + 20134^2 .

It is not an unprimeable number, because it can be changed into a prime (20100132209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50250131 + ... + 50250530.

Almost surely, 220100132200 is an apocalyptic number.

20100132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100132200 is an abundant number, since it is smaller than the sum of its proper divisors (26632675630).

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

20100132200 is a wasteful number, since it uses less digits than its factorization.

20100132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100500677 (or 100500668 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20100132200 its reverse (223100102), we get a palindrome (20323232302).

The spelling of 20100132200 in words is "twenty billion, one hundred million, one hundred thirty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 100500661 201001322 402002644 502503305 804005288 1005006610 2010013220 2512516525 4020026440 5025033050 10050066100 20100132200