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196780 = 2259839
BaseRepresentation
bin110000000010101100
3100222221011
4300002230
522244110
64115004
71446463
oct600254
9328834
10196780
11124931
1295a64
136b74c
14519da
153d48a
hex300ac

196780 has 12 divisors (see below), whose sum is σ = 413280. Its totient is φ = 78704.

The previous prime is 196771. The next prime is 196799. The reversal of 196780 is 87691.

It is an unprimeable number.

196780 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, 4900 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

2196780 is an apocalyptic number.

196780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196780 is an abundant number, since it is smaller than the sum of its proper divisors (216500).

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

196780 is a wasteful number, since it uses less digits than its factorization.

196780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9848 (or 9846 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 196780 is about 443.5989179428. The cubic root of 196780 is about 58.1648106657.

The spelling of 196780 in words is "one hundred ninety-six thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 9839 19678 39356 49195 98390 196780