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1049985 = 32523333
BaseRepresentation
bin100000000010110000001
31222100022100
410000112001
5232044420
634301013
711632116
oct4002601
91870270
101049985
11657962
12427769
132a9bc1
141d490d
1515b190
hex100581

1049985 has 12 divisors (see below), whose sum is σ = 1820052. Its totient is φ = 559968.

The previous prime is 1049977. The next prime is 1049999. The reversal of 1049985 is 5899401.

It can be written as a sum of positive squares in 2 ways, for example, as 173889 + 876096 = 417^2 + 936^2 .

It is not a de Polignac number, because 1049985 - 23 = 1049977 is a prime.

It is a super-2 number, since 2×10499852 = 2204937000450, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11622 + ... + 11711.

It is an arithmetic number, because the mean of its divisors is an integer number (151671).

21049985 is an apocalyptic number.

1049985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1049985 is a deficient number, since it is larger than the sum of its proper divisors (770067).

1049985 is a wasteful number, since it uses less digits than its factorization.

1049985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344 (or 23341 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1049985 is about 1024.6877573193. The cubic root of 1049985 is about 101.6391516809.

The spelling of 1049985 in words is "one million, forty-nine thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 45 23333 69999 116665 209997 349995 1049985