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194500 = 2253389
BaseRepresentation
bin101111011111000100
3100212210201
4233133010
522211000
64100244
71440025
oct573704
9325721
10194500
11123149
1294684
136a6b7
1450c4c
153c96a
hex2f7c4

194500 has 24 divisors (see below), whose sum is σ = 425880. Its totient is φ = 77600.

The previous prime is 194483. The next prime is 194507. The reversal of 194500 is 5491.

194500 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 4 ways, for example, as 23104 + 171396 = 152^2 + 414^2 .

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (194507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (17745).

2194500 is an apocalyptic number.

194500 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 194500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212940).

194500 is an abundant number, since it is smaller than the sum of its proper divisors (231380).

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

194500 is a wasteful number, since it uses less digits than its factorization.

194500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 194500 is about 441.0215414240. The cubic root of 194500 is about 57.9392943920.

Subtracting from 194500 its sum of digits (19), we obtain a 4-th power (194481 = 214).

Adding to 194500 its reverse (5491), we get a palindrome (199991).

The spelling of 194500 in words is "one hundred ninety-four thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 389 500 778 1556 1945 3890 7780 9725 19450 38900 48625 97250 194500