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1248085 = 5472113
BaseRepresentation
bin100110000101101010101
32100102001101
410300231111
5304414320
642430101
713415506
oct4605525
92312041
101248085
11782783
12502331
13349117
14246bad
15199c0a
hex130b55

1248085 has 12 divisors (see below), whose sum is σ = 1543788. Its totient is φ = 968576.

The previous prime is 1248083. The next prime is 1248101. The reversal of 1248085 is 5808421.

It can be written as a sum of positive squares in 2 ways, for example, as 178929 + 1069156 = 423^2 + 1034^2 .

It is not a de Polignac number, because 1248085 - 21 = 1248083 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 (1248083) 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, 10989 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (128649).

21248085 is an apocalyptic number.

It is an amenable number.

1248085 is a deficient number, since it is larger than the sum of its proper divisors (295703).

1248085 is an equidigital number, since it uses as much as digits as its factorization.

1248085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1248085 is about 1117.1772464564. The cubic root of 1248085 is about 107.6666964869. Note that the first 4 decimals are identical.

The spelling of 1248085 in words is "one million, two hundred forty-eight thousand, eighty-five".

Divisors: 1 5 47 113 235 565 2209 5311 11045 26555 249617 1248085