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1227085 = 5245417
BaseRepresentation
bin100101011100101001101
32022100020121
410223211031
5303231320
642144541
713300336
oct4534515
92270217
101227085
11768a22
124b2151
1333c6b2
1423d28d
151938aa
hex12b94d

1227085 has 4 divisors (see below), whose sum is σ = 1472508. Its totient is φ = 981664.

The previous prime is 1227053. The next prime is 1227101. The reversal of 1227085 is 5807221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 910116 = 563^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227085 - 25 = 1227053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 122704 + ... + 122713.

It is an arithmetic number, because the mean of its divisors is an integer number (368127).

21227085 is an apocalyptic number.

It is an amenable number.

1227085 is a deficient number, since it is larger than the sum of its proper divisors (245423).

1227085 is an equidigital number, since it uses as much as digits as its factorization.

1227085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245422.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1227085 is about 1107.7386875974. The cubic root of 1227085 is about 107.0594190602.

The spelling of 1227085 in words is "one million, two hundred twenty-seven thousand, eighty-five".

Divisors: 1 5 245417 1227085