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195888 = 24371153
BaseRepresentation
bin101111110100110000
3100221201010
4233310300
522232023
64110520
71444050
oct576460
9327633
10195888
111241a0
1295440
136b214
1451560
153d093
hex2fd30

195888 has 80 divisors (see below), whose sum is σ = 642816. Its totient is φ = 49920.

The previous prime is 195887. The next prime is 195893. The reversal of 195888 is 888591.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (195883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670 + ... + 3722.

2195888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321408).

195888 is an abundant number, since it is smaller than the sum of its proper divisors (446928).

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

195888 is a wasteful number, since it uses less digits than its factorization.

195888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 76 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 195888 is about 442.5923632418. The cubic root of 195888 is about 58.0767908737.

The spelling of 195888 in words is "one hundred ninety-five thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 48 53 56 66 77 84 88 106 112 132 154 159 168 176 212 231 264 308 318 336 371 424 462 528 583 616 636 742 848 924 1113 1166 1232 1272 1484 1749 1848 2226 2332 2544 2968 3498 3696 4081 4452 4664 5936 6996 8162 8904 9328 12243 13992 16324 17808 24486 27984 32648 48972 65296 97944 195888