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188868870050 = 25271035239081
BaseRepresentation
bin1010111111100101110…
…1100011111110100010
3200001111121002200210012
42233321131203332202
511043300412320200
6222433135204522
716434226623050
oct2577135437642
9601447080705
10188868870050
117310a60a553
123072b976742
1314a6c1a1953
1491d9a391d0
154da6131a35
hex2bf9763fa2

188868870050 has 48 divisors (see below), whose sum is σ = 405379208832. Its totient is φ = 64126339200.

The previous prime is 188868870019. The next prime is 188868870079. The reversal of 188868870050 is 50078868881.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2583491 + ... + 2655590.

It is an arithmetic number, because the mean of its divisors is an integer number (8445400184).

Almost surely, 2188868870050 is an apocalyptic number.

188868870050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188868870050 is an abundant number, since it is smaller than the sum of its proper divisors (216510338782).

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

188868870050 is a wasteful number, since it uses less digits than its factorization.

188868870050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239203 (or 5239198 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 59.

The spelling of 188868870050 in words is "one hundred eighty-eight billion, eight hundred sixty-eight million, eight hundred seventy thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 103 175 206 350 515 721 1030 1442 2575 3605 5150 7210 18025 36050 5239081 10478162 26195405 36673567 52390810 73347134 130977025 183367835 261954050 366735670 539625343 916839175 1079250686 1833678350 2698126715 3777377401 5396253430 7554754802 13490633575 18886887005 26981267150 37773774010 94434435025 188868870050