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1234385 = 5298513
BaseRepresentation
bin100101101010111010001
32022201020222
410231113101
5304000020
642242425
713330535
oct4552721
92281228
101234385
11773459
124b6415
13342b09
14241bc5
15195b25
hex12d5d1

1234385 has 8 divisors (see below), whose sum is σ = 1532520. Its totient is φ = 953344.

The previous prime is 1234379. The next prime is 1234391. The reversal of 1234385 is 5834321.

It is an interprime number because it is at equal distance from previous prime (1234379) and next prime (1234391).

It can be written as a sum of positive squares in 4 ways, for example, as 452929 + 781456 = 673^2 + 884^2 .

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 1234385 - 210 = 1233361 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 7 ways as a sum of consecutive naturals, for example, 4112 + ... + 4401.

It is an arithmetic number, because the mean of its divisors is an integer number (191565).

21234385 is an apocalyptic number.

It is an amenable number.

1234385 is a deficient number, since it is larger than the sum of its proper divisors (298135).

1234385 is an equidigital number, since it uses as much as digits as its factorization.

1234385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547.

The product of its digits is 2880, while the sum is 26.

The square root of 1234385 is about 1111.0288025069. The cubic root of 1234385 is about 107.2713003519.

The spelling of 1234385 in words is "one million, two hundred thirty-four thousand, three hundred eighty-five".

Divisors: 1 5 29 145 8513 42565 246877 1234385