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189896 = 2373391
BaseRepresentation
bin101110010111001000
3100122111012
4232113020
522034041
64023052
71420430
oct562710
9318435
10189896
1111a743
1291a88
1368585
144d2c0
153b3eb
hex2e5c8

189896 has 16 divisors (see below), whose sum is σ = 407040. Its totient is φ = 81360.

The previous prime is 189887. The next prime is 189901. The reversal of 189896 is 698981.

189896 = T146 + T147 + ... + T161.

189896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

189896 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 3 ways as a sum of consecutive naturals, for example, 1640 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (25440).

2189896 is an apocalyptic number.

It is an amenable number.

189896 is an abundant number, since it is smaller than the sum of its proper divisors (217144).

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

189896 is a wasteful number, since it uses less digits than its factorization.

189896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3400 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 189896 is about 435.7705818432. The cubic root of 189896 is about 57.4784796593.

The spelling of 189896 in words is "one hundred eighty-nine thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 28 56 3391 6782 13564 23737 27128 47474 94948 189896