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196580 = 2259829
BaseRepresentation
bin101111111111100100
3100222122202
4233333210
522242310
64114032
71446056
oct577744
9328582
10196580
1112476a
1295918
136b627
14518d6
153d3a5
hex2ffe4

196580 has 12 divisors (see below), whose sum is σ = 412860. Its totient is φ = 78624.

The previous prime is 196579. The next prime is 196583. The reversal of 196580 is 85691.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 65536 = 362^2 + 256^2 .

It is not an unprimeable number, because it can be changed into a prime (196583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4895 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (34405).

2196580 is an apocalyptic number.

196580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196580 is an abundant number, since it is smaller than the sum of its proper divisors (216280).

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

196580 is a wasteful number, since it uses less digits than its factorization.

196580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838 (or 9836 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 196580 is about 443.3734317706. The cubic root of 196580 is about 58.1450984567.

Subtracting from 196580 its reverse (85691), we obtain a square (110889 = 3332).

The spelling of 196580 in words is "one hundred ninety-six thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 9829 19658 39316 49145 98290 196580