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195712 = 2711139
BaseRepresentation
bin101111110010000000
3100221110121
4233302000
522230322
64110024
71443406
oct576200
9327417
10195712
11124050
1295314
136b10a
1451476
153cec7
hex2fc80

195712 has 32 divisors (see below), whose sum is σ = 428400. Its totient is φ = 88320.

The previous prime is 195709. The next prime is 195731. The reversal of 195712 is 217591.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339 + ... + 1477.

2195712 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 195712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214200).

195712 is an abundant number, since it is smaller than the sum of its proper divisors (232688).

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

195712 is a wasteful number, since it uses less digits than its factorization.

195712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 152 counting only the distinct ones).

The product of its digits is 630, while the sum is 25.

The square root of 195712 is about 442.3934900064. The cubic root of 195712 is about 58.0593921935.

The spelling of 195712 in words is "one hundred ninety-five thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 139 176 278 352 556 704 1112 1408 1529 2224 3058 4448 6116 8896 12232 17792 24464 48928 97856 195712