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195093 = 3253409
BaseRepresentation
bin101111101000010101
3100220121200
4233220111
522220333
64103113
71441533
oct575025
9326550
10195093
11123638
1294a99
136aa52
1451153
153cc13
hex2fa15

195093 has 12 divisors (see below), whose sum is σ = 287820. Its totient is φ = 127296.

The previous prime is 195089. The next prime is 195103. The reversal of 195093 is 390591.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 33489 = 402^2 + 183^2 .

It is not a de Polignac number, because 195093 - 22 = 195089 is a prime.

It is a super-2 number, since 2×1950932 = 76122557298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

195093 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (23985).

2195093 is an apocalyptic number.

It is an amenable number.

195093 is a deficient number, since it is larger than the sum of its proper divisors (92727).

195093 is a wasteful number, since it uses less digits than its factorization.

195093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 195093 is about 441.6933325284. The cubic root of 195093 is about 57.9981172595.

The spelling of 195093 in words is "one hundred ninety-five thousand, ninety-three".

Divisors: 1 3 9 53 159 409 477 1227 3681 21677 65031 195093