Search a number
-
+
189414 = 23217619
BaseRepresentation
bin101110001111100110
3100121211100
4232033212
522030124
64020530
71416141
oct561746
9317740
10189414
1111a345
1291746
13682a4
144d058
153b1c9
hex2e3e6

189414 has 24 divisors (see below), whose sum is σ = 435240. Its totient is φ = 59328.

The previous prime is 189407. The next prime is 189421. The reversal of 189414 is 414981.

189414 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (189407) and next prime (189421).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (18135).

2189414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217620).

189414 is an abundant number, since it is smaller than the sum of its proper divisors (245826).

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

189414 is a wasteful number, since it uses less digits than its factorization.

189414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 189414 is about 435.2171871606. The cubic root of 189414 is about 57.4298072271.

The spelling of 189414 in words is "one hundred eighty-nine thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 619 1238 1857 3714 5571 10523 11142 21046 31569 63138 94707 189414