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3081109 = 4175149
BaseRepresentation
bin1011110000001110010101
312210112111011
423300032111
51242043414
6150012221
735121553
oct13601625
95715434
103081109
111814979
121047071
1383b555
145a2bd3
1540cdc4
hex2f0395

3081109 has 4 divisors (see below), whose sum is σ = 3156300. Its totient is φ = 3005920.

The previous prime is 3081107. The next prime is 3081119. The reversal of 3081109 is 9011803.

3081109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 88209 + 2992900 = 297^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 3081109 - 21 = 3081107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3081109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081107) 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 3 ways as a sum of consecutive naturals, for example, 37534 + ... + 37615.

It is an arithmetic number, because the mean of its divisors is an integer number (789075).

Almost surely, 23081109 is an apocalyptic number.

It is an amenable number.

3081109 is a deficient number, since it is larger than the sum of its proper divisors (75191).

3081109 is an equidigital number, since it uses as much as digits as its factorization.

3081109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75190.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 3081109 is about 1755.3088047406. The cubic root of 3081109 is about 145.5131875168.

The spelling of 3081109 in words is "three million, eighty-one thousand, one hundred nine".

Divisors: 1 41 75149 3081109