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1230195 = 3582013
BaseRepresentation
bin100101100010101110011
32022111111210
410230111303
5303331240
642211203
713312401
oct4542563
92274453
101230195
1177029a
124b3b03
13340c35
14240471
15194780
hex12c573

1230195 has 8 divisors (see below), whose sum is σ = 1968336. Its totient is φ = 656096.

The previous prime is 1230181. The next prime is 1230199. The reversal of 1230195 is 5910321.

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 1230195 - 27 = 1230067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40992 + ... + 41021.

It is an arithmetic number, because the mean of its divisors is an integer number (246042).

21230195 is an apocalyptic number.

1230195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230195 is a deficient number, since it is larger than the sum of its proper divisors (738141).

1230195 is an equidigital number, since it uses as much as digits as its factorization.

1230195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82021.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1230195 is about 1109.1415599462. The cubic root of 1230195 is about 107.1497887579.

The spelling of 1230195 in words is "one million, two hundred thirty thousand, one hundred ninety-five".

Divisors: 1 3 5 15 82013 246039 410065 1230195