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185000 = 235437
BaseRepresentation
bin101101001010101000
3100101202212
4231022220
521410000
63544252
71400234
oct551250
9311685
10185000
11116aa2
128b088
136628a
144b5c4
1539c35
hex2d2a8

185000 has 40 divisors (see below), whose sum is σ = 445170. Its totient is φ = 72000.

The previous prime is 184999. The next prime is 185021. The reversal of 185000 is 581.

185000 = T144 + T145 + ... + T159.

185000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 20164 + 164836 = 142^2 + 406^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4982 + ... + 5018.

2185000 is an apocalyptic number.

185000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 185000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222585).

185000 is an abundant number, since it is smaller than the sum of its proper divisors (260170).

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

185000 is an equidigital number, since it uses as much as digits as its factorization.

185000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 185000 is about 430.1162633521. The cubic root of 185000 is about 56.9801921531.

Adding to 185000 its reverse (581), we get a palindrome (185581).

It can be divided in two parts, 18 and 5000, that multiplied together give a square (90000 = 3002).

The spelling of 185000 in words is "one hundred eighty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 37 40 50 74 100 125 148 185 200 250 296 370 500 625 740 925 1000 1250 1480 1850 2500 3700 4625 5000 7400 9250 18500 23125 37000 46250 92500 185000