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195938 = 23132
BaseRepresentation
bin101111110101100010
3100221202222
4233311202
522232223
64111042
71444151
oct576542
9327688
10195938
11124236
1295482
136b252
1451598
153d0c8
hex2fd62

195938 has 6 divisors (see below), whose sum is σ = 294849. Its totient is φ = 97656.

The previous prime is 195931. The next prime is 195967. The reversal of 195938 is 839591.

It can be written as a sum of positive squares in 2 ways, for example, as 113569 + 82369 = 337^2 + 287^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=313.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195898 and 195907.

It is not an unprimeable number, because it can be changed into a prime (195931) by changing a digit.

195938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 470 + ... + 782.

2195938 is an apocalyptic number.

195938 is a deficient number, since it is larger than the sum of its proper divisors (98911).

195938 is an frugal number, since it uses more digits than its factorization.

195938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 315 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 195938 is about 442.6488450228. The cubic root of 195938 is about 58.0817317796.

The spelling of 195938 in words is "one hundred ninety-five thousand, nine hundred thirty-eight".

Divisors: 1 2 313 626 97969 195938