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1065081 = 3355027
BaseRepresentation
bin100000100000001111001
32000010000110
410010001321
5233040311
634454533
712024123
oct4040171
92003013
101065081
11668236
12434449
132b3a34
141da213
151608a6
hex104079

1065081 has 4 divisors (see below), whose sum is σ = 1420112. Its totient is φ = 710052.

The previous prime is 1065073. The next prime is 1065089. The reversal of 1065081 is 1805601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1065073) and next prime (1065089).

It is not a de Polignac number, because 1065081 - 23 = 1065073 is a prime.

It is a super-2 number, since 2×10650812 = 2268795073122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177511 + ... + 177516.

It is an arithmetic number, because the mean of its divisors is an integer number (355028).

21065081 is an apocalyptic number.

It is an amenable number.

1065081 is a deficient number, since it is larger than the sum of its proper divisors (355031).

1065081 is an equidigital number, since it uses as much as digits as its factorization.

1065081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355030.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1065081 is about 1032.0276159096. The cubic root of 1065081 is about 102.1239362386.

It can be divided in two parts, 10650 and 81, that added together give a triangular number (10731 = T146).

The spelling of 1065081 in words is "one million, sixty-five thousand, eighty-one".

Divisors: 1 3 355027 1065081