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188055 = 3357199
BaseRepresentation
bin101101111010010111
3100112222000
4231322113
522004210
64010343
71412160
oct557227
9315860
10188055
1111931a
12909b3
136779a
144c767
153aac0
hex2de97

188055 has 32 divisors (see below), whose sum is σ = 384000. Its totient is φ = 85536.

The previous prime is 188029. The next prime is 188107. The reversal of 188055 is 550881.

It is not a de Polignac number, because 188055 - 27 = 187927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 188055.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 846 + ... + 1044.

It is an arithmetic number, because the mean of its divisors is an integer number (12000).

2188055 is an apocalyptic number.

188055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

188055 is an abundant number, since it is smaller than the sum of its proper divisors (195945).

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

188055 is a wasteful number, since it uses less digits than its factorization.

188055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 188055 is about 433.6530871561. The cubic root of 188055 is about 57.2921290688.

The spelling of 188055 in words is "one hundred eighty-eight thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 199 315 597 945 995 1393 1791 2985 4179 5373 6965 8955 12537 20895 26865 37611 62685 188055