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1069081 = 1382237
BaseRepresentation
bin100000101000000011001
32000022111121
410011000121
5233202311
634525241
712041566
oct4050031
92008447
101069081
11670242
12436821
132b57c0
141db86d
15161b71
hex105019

1069081 has 4 divisors (see below), whose sum is σ = 1151332. Its totient is φ = 986832.

The previous prime is 1069051. The next prime is 1069087. The reversal of 1069081 is 1809601.

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 665856 + 403225 = 816^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1069081 - 219 = 544793 is a prime.

It is a super-2 number, since 2×10690812 = 2285868369122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1069087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41106 + ... + 41131.

It is an arithmetic number, because the mean of its divisors is an integer number (287833).

21069081 is an apocalyptic number.

It is an amenable number.

1069081 is a deficient number, since it is larger than the sum of its proper divisors (82251).

1069081 is an equidigital number, since it uses as much as digits as its factorization.

1069081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82250.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1069081 is about 1033.9637324394. The cubic root of 1069081 is about 102.2516214974.

The spelling of 1069081 in words is "one million, sixty-nine thousand, eighty-one".

Divisors: 1 13 82237 1069081