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189460 = 2259473
BaseRepresentation
bin101110010000010100
3100121220001
4232100110
522030320
64021044
71416235
oct562024
9317801
10189460
1111a387
1291784
136830b
144d08c
153b20a
hex2e414

189460 has 12 divisors (see below), whose sum is σ = 397908. Its totient is φ = 75776.

The previous prime is 189439. The next prime is 189463. The reversal of 189460 is 64981.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 51076 = 372^2 + 226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4717 + ... + 4756.

It is an arithmetic number, because the mean of its divisors is an integer number (33159).

2189460 is an apocalyptic number.

189460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189460 is an abundant number, since it is smaller than the sum of its proper divisors (208448).

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

189460 is a wasteful number, since it uses less digits than its factorization.

189460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9482 (or 9480 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 189460 is about 435.2700311301. The cubic root of 189460 is about 57.4344558756.

The spelling of 189460 in words is "one hundred eighty-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 9473 18946 37892 47365 94730 189460