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195852069 = 3272444109
BaseRepresentation
bin10111010110001…
…11011100100101
3111122112022112100
423223013130211
5400114231234
631233442313
74565500200
oct1353073445
9448468470
10195852069
11a060a616
1255710399
13317642ca
141c022937
15122da399
hexbac7725

195852069 has 18 divisors (see below), whose sum is σ = 329085510. Its totient is φ = 111915216.

The previous prime is 195852023. The next prime is 195852071. The reversal of 195852069 is 960258591.

195852069 is a `hidden beast` number, since 1 + 9 + 585 + 2 + 0 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 186322500 + 9529569 = 13650^2 + 3087^2 .

It is not a de Polignac number, because 195852069 - 27 = 195851941 is a prime.

It is a super-3 number, since 3×1958520693 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195852269) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 221614 + ... + 222495.

Almost surely, 2195852069 is an apocalyptic number.

It is an amenable number.

195852069 is a deficient number, since it is larger than the sum of its proper divisors (133233441).

195852069 is a wasteful number, since it uses less digits than its factorization.

195852069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444129 (or 444119 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 195852069 is about 13994.7157527404. The cubic root of 195852069 is about 580.7323972070.

The spelling of 195852069 in words is "one hundred ninety-five million, eight hundred fifty-two thousand, sixty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 444109 1332327 3108763 3996981 9326289 21761341 27978867 65284023 195852069