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195245 = 5172297
BaseRepresentation
bin101111101010101101
3100220211022
4233222231
522221440
64103525
71442141
oct575255
9326738
10195245
11123766
1294ba5
136ab3b
1451221
153ccb5
hex2faad

195245 has 8 divisors (see below), whose sum is σ = 248184. Its totient is φ = 146944.

The previous prime is 195241. The next prime is 195253. The reversal of 195245 is 542591.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 157609 = 194^2 + 397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195245 - 22 = 195241 is a prime.

It is a super-2 number, since 2×1952452 = 76241220050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (31023).

2195245 is an apocalyptic number.

It is an amenable number.

195245 is a deficient number, since it is larger than the sum of its proper divisors (52939).

195245 is a wasteful number, since it uses less digits than its factorization.

195245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its digits is 1800, while the sum is 26.

The square root of 195245 is about 441.8653641099. The cubic root of 195245 is about 58.0131757621.

The spelling of 195245 in words is "one hundred ninety-five thousand, two hundred forty-five".

Divisors: 1 5 17 85 2297 11485 39049 195245