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1030385 = 5206077
BaseRepresentation
bin11111011100011110001
31221100102102
43323203301
5230433020
634030145
711521016
oct3734361
91840372
101030385
11644164
12418355
132a0cc5
141cb70d
15155475
hexfb8f1

1030385 has 4 divisors (see below), whose sum is σ = 1236468. Its totient is φ = 824304.

The previous prime is 1030369. The next prime is 1030411. The reversal of 1030385 is 5830301.

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 295936 + 734449 = 544^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030385 - 24 = 1030369 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103034 + ... + 103043.

It is an arithmetic number, because the mean of its divisors is an integer number (309117).

21030385 is an apocalyptic number.

It is an amenable number.

1030385 is a deficient number, since it is larger than the sum of its proper divisors (206083).

1030385 is an equidigital number, since it uses as much as digits as its factorization.

1030385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206082.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1030385 is about 1015.0788146740. The cubic root of 1030385 is about 101.0027447543.

Adding to 1030385 its reverse (5830301), we get a palindrome (6860686).

The spelling of 1030385 in words is "one million, thirty thousand, three hundred eighty-five".

Divisors: 1 5 206077 1030385