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189516 = 22317929
BaseRepresentation
bin101110010001001100
3100121222010
4232101030
522031031
64021220
71416345
oct562114
9317863
10189516
1111a428
1291810
1368352
144d0cc
153b246
hex2e44c

189516 has 24 divisors (see below), whose sum is σ = 468720. Its totient is φ = 59392.

The previous prime is 189509. The next prime is 189517. The reversal of 189516 is 615981.

It is a happy number.

189516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189517) by changing a digit.

189516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2189516 is an apocalyptic number.

It is an amenable number.

189516 is an abundant number, since it is smaller than the sum of its proper divisors (279204).

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

189516 is a wasteful number, since it uses less digits than its factorization.

189516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 951 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

The square root of 189516 is about 435.3343542612. The cubic root of 189516 is about 57.4401140843.

The spelling of 189516 in words is "one hundred eighty-nine thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 929 1858 2787 3716 5574 11148 15793 31586 47379 63172 94758 189516