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199894 = 2891123
BaseRepresentation
bin110000110011010110
3101011012111
4300303112
522344034
64141234
71461532
oct606326
9334174
10199894
11127202
129781a
136cca6
1452bc2
153e364
hex30cd6

199894 has 8 divisors (see below), whose sum is σ = 303480. Its totient is φ = 98736.

The previous prime is 199889. The next prime is 199909. The reversal of 199894 is 498991.

199894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1998942 = 79915222472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (37935).

2199894 is an apocalyptic number.

199894 is a deficient number, since it is larger than the sum of its proper divisors (103586).

199894 is a wasteful number, since it uses less digits than its factorization.

199894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its digits is 23328, while the sum is 40.

The square root of 199894 is about 447.0950681902. The cubic root of 199894 is about 58.4700214091.

It can be divided in two parts, 199 and 894, that multiplied together give a triangular number (177906 = T596).

The spelling of 199894 in words is "one hundred ninety-nine thousand, eight hundred ninety-four".

Divisors: 1 2 89 178 1123 2246 99947 199894