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20130113200 = 2452167301349
BaseRepresentation
bin10010101111110110…
…010010011010110000
31220221220100201000011
4102233312102122300
5312211302110300
613125254104304
71311562065451
oct225766223260
956856321004
1020130113200
11859aa18a9a
123a9964b094
131b8a632ab2
14d8d6b5128
157cc3bceba
hex4afd926b0

20130113200 has 60 divisors (see below), whose sum is σ = 48652354800. Its totient is φ = 8003802880.

The previous prime is 20130113189. The next prime is 20130113203. The reversal of 20130113200 is 231103102.

It is not an unprimeable number, because it can be changed into a prime (20130113203) 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, 83875 + ... + 217474.

It is an arithmetic number, because the mean of its divisors is an integer number (810872580).

Almost surely, 220130113200 is an apocalyptic number.

20130113200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130113200 is an abundant number, since it is smaller than the sum of its proper divisors (28522241600).

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

20130113200 is a wasteful number, since it uses less digits than its factorization.

20130113200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301534 (or 301523 counting only the distinct ones).

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

Adding to 20130113200 its reverse (231103102), we get a palindrome (20361216302).

The spelling of 20130113200 in words is "twenty billion, one hundred thirty million, one hundred thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 167 200 334 400 668 835 1336 1670 2672 3340 4175 6680 8350 13360 16700 33400 66800 301349 602698 1205396 1506745 2410792 3013490 4821584 6026980 7533725 12053960 15067450 24107920 30134900 50325283 60269800 100650566 120539600 201301132 251626415 402602264 503252830 805204528 1006505660 1258132075 2013011320 2516264150 4026022640 5032528300 10065056600 20130113200