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195928349 = 1711525197
BaseRepresentation
bin10111010110110…
…10000100011101
3111122200012011112
423223122010131
5400124201344
631235231405
74566235451
oct1353320435
9448605145
10195928349
11a0661961
1255748565
133178cc46
141c042661
1512302c9e
hexbada11d

195928349 has 4 divisors (see below), whose sum is σ = 207453564. Its totient is φ = 184403136.

The previous prime is 195928331. The next prime is 195928387. The reversal of 195928349 is 943829591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111619225 + 84309124 = 10565^2 + 9182^2 .

It is a cyclic number.

It is not a de Polignac number, because 195928349 - 216 = 195862813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195928297 and 195928306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195928309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5762582 + ... + 5762615.

It is an arithmetic number, because the mean of its divisors is an integer number (51863391).

Almost surely, 2195928349 is an apocalyptic number.

It is an amenable number.

195928349 is a deficient number, since it is larger than the sum of its proper divisors (11525215).

195928349 is a wasteful number, since it uses less digits than its factorization.

195928349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11525214.

The product of its digits is 699840, while the sum is 50.

The square root of 195928349 is about 13997.4408018037. The cubic root of 195928349 is about 580.8077815139.

The spelling of 195928349 in words is "one hundred ninety-five million, nine hundred twenty-eight thousand, three hundred forty-nine".

Divisors: 1 17 11525197 195928349