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189934 = 2234129
BaseRepresentation
bin101110010111101110
3100122112121
4232113232
522034214
64023154
71420513
oct562756
9318477
10189934
1111a778
1291aba
13685b4
144d30a
153b424
hex2e5ee

189934 has 8 divisors (see below), whose sum is σ = 297360. Its totient is φ = 90816.

The previous prime is 189929. The next prime is 189947. The reversal of 189934 is 439981.

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

It is a self number, because there is not a number n which added to its sum of digits gives 189934.

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, 2019 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (37170).

2189934 is an apocalyptic number.

189934 is a deficient number, since it is larger than the sum of its proper divisors (107426).

189934 is a wasteful number, since it uses less digits than its factorization.

189934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154.

The product of its digits is 7776, while the sum is 34.

The square root of 189934 is about 435.8141805862. The cubic root of 189934 is about 57.4823134009.

Subtracting 189934 from its reverse (439981), we obtain a cube (250047 = 633).

The spelling of 189934 in words is "one hundred eighty-nine thousand, nine hundred thirty-four".

Divisors: 1 2 23 46 4129 8258 94967 189934