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188850005020 = 2259442500251
BaseRepresentation
bin1010111111100001010…
…1100110010000011100
3200001110021121020211101
42233320111212100130
511043231100130040
6222431223002444
716433610362005
oct2577025462034
9601407536741
10188850005020
11730aa9a4a16
1230725599424
1314a682c8001
1491d73281ac
154da465709a
hex2bf856641c

188850005020 has 12 divisors (see below), whose sum is σ = 396585010584. Its totient is φ = 75540002000.

The previous prime is 188850005017. The next prime is 188850005027. The reversal of 188850005020 is 20500058881.

188850005020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1888500050203 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188850005027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4721250106 + ... + 4721250145.

It is an arithmetic number, because the mean of its divisors is an integer number (33048750882).

Almost surely, 2188850005020 is an apocalyptic number.

188850005020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188850005020 is an abundant number, since it is smaller than the sum of its proper divisors (207735005564).

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

188850005020 is a wasteful number, since it uses less digits than its factorization.

188850005020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9442500260 (or 9442500258 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The spelling of 188850005020 in words is "one hundred eighty-eight billion, eight hundred fifty million, five thousand, twenty".

Divisors: 1 2 4 5 10 20 9442500251 18885000502 37770001004 47212501255 94425002510 188850005020