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20403822200 = 2352412488271
BaseRepresentation
bin10011000000001010…
…011001111001111000
31221122222101120011112
4103000022121321320
5313241334302300
613212352415452
71321424425046
oct230012317170
957588346145
1020403822200
118720475683
123b55247588
131c02256b98
14db7ba3396
157e6436e35
hex4c0299e78

20403822200 has 48 divisors (see below), whose sum is σ = 48595952160. Its totient is φ = 7962464000.

The previous prime is 20403822193. The next prime is 20403822209. The reversal of 20403822200 is 222830402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20403822209) 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, 1235936 + ... + 1252335.

It is an arithmetic number, because the mean of its divisors is an integer number (1012415670).

Almost surely, 220403822200 is an apocalyptic number.

20403822200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20403822200 is an abundant number, since it is smaller than the sum of its proper divisors (28192129960).

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

20403822200 is a wasteful number, since it uses less digits than its factorization.

20403822200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488328 (or 2488319 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The spelling of 20403822200 in words is "twenty billion, four hundred three million, eight hundred twenty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 41 50 82 100 164 200 205 328 410 820 1025 1640 2050 4100 8200 2488271 4976542 9953084 12441355 19906168 24882710 49765420 62206775 99530840 102019111 124413550 204038222 248827100 408076444 497654200 510095555 816152888 1020191110 2040382220 2550477775 4080764440 5100955550 10201911100 20403822200