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195384853 = 969720149
BaseRepresentation
bin10111010010101…
…01011000010101
3111121122120122001
423221111120111
5400004303403
631215435301
74561513066
oct1351253025
9447576561
10195384853
11a0320594
1255525b31
133162c751
141bd4056d
1512246c1d
hexba55615

195384853 has 4 divisors (see below), whose sum is σ = 195414700. Its totient is φ = 195355008.

The previous prime is 195384851. The next prime is 195384857. The reversal of 195384853 is 358483591.

195384853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 5707-th star number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358483591 = 1609222799.

It can be written as a sum of positive squares in 2 ways, for example, as 53846244 + 141538609 = 7338^2 + 11897^2 .

It is a cyclic number.

It is not a de Polignac number, because 195384853 - 21 = 195384851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195384851) 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, 378 + ... + 19771.

It is an arithmetic number, because the mean of its divisors is an integer number (48853675).

Almost surely, 2195384853 is an apocalyptic number.

It is an amenable number.

195384853 is a deficient number, since it is larger than the sum of its proper divisors (29847).

195384853 is an equidigital number, since it uses as much as digits as its factorization.

195384853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29846.

The product of its digits is 518400, while the sum is 46.

The square root of 195384853 is about 13978.0131993070. The cubic root of 195384853 is about 580.2702397037.

The spelling of 195384853 in words is "one hundred ninety-five million, three hundred eighty-four thousand, eight hundred fifty-three".

Divisors: 1 9697 20149 195384853