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1080985 = 51032099
BaseRepresentation
bin100000111111010011001
32000220211111
410013322121
5234042420
635100321
712121363
oct4077231
92026744
101080985
11679184
124416a1
132bb049
14201d33
1516545a
hex107e99

1080985 has 8 divisors (see below), whose sum is σ = 1310400. Its totient is φ = 855984.

The previous prime is 1080983. The next prime is 1081027. The reversal of 1080985 is 5890801.

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 1080985 - 21 = 1080983 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1080983) by changing a digit.

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, 535 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

21080985 is an apocalyptic number.

It is an amenable number.

1080985 is a deficient number, since it is larger than the sum of its proper divisors (229415).

1080985 is a wasteful number, since it uses less digits than its factorization.

1080985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1080985 is about 1039.7042848810. The cubic root of 1080985 is about 102.6297385508.

The spelling of 1080985 in words is "one million, eighty thousand, nine hundred eighty-five".

Divisors: 1 5 103 515 2099 10495 216197 1080985