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189030 = 2356301
BaseRepresentation
bin101110001001100110
3100121022010
4232021212
522022110
64015050
71415052
oct561146
9317263
10189030
1111a026
1291486
136806a
144cc62
153b020
hex2e266

189030 has 16 divisors (see below), whose sum is σ = 453744. Its totient is φ = 50400.

The previous prime is 189019. The next prime is 189041. The reversal of 189030 is 30981.

189030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189019) and next prime (189041).

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

It is a junction number, because it is equal to n+sod(n) for n = 188988 and 189006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3121 + ... + 3180.

It is an arithmetic number, because the mean of its divisors is an integer number (28359).

2189030 is an apocalyptic number.

189030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189030 is an abundant number, since it is smaller than the sum of its proper divisors (264714).

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

189030 is a wasteful number, since it uses less digits than its factorization.

189030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 189030 is about 434.7758042946. The cubic root of 189030 is about 57.3909717212.

The spelling of 189030 in words is "one hundred eighty-nine thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 6301 12602 18903 31505 37806 63010 94515 189030