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3104042005 = 5620808401
BaseRepresentation
bin1011100100000011…
…1110110000010101
322000022210200010201
42321000332300111
522324113321010
61232002220501
7136630631101
oct27100766025
98008720121
103104042005
111353172779
12727654731
133a6111a5c
1421636a901
1513279623a
hexb903ec15

3104042005 has 4 divisors (see below), whose sum is σ = 3724850412. Its totient is φ = 2483233600.

The previous prime is 3104042003. The next prime is 3104042021. The reversal of 3104042005 is 5002404013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002404013 = 34911432943.

It can be written as a sum of positive squares in 2 ways, for example, as 350101521 + 2753940484 = 18711^2 + 52478^2 .

It is not a de Polignac number, because 3104042005 - 21 = 3104042003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104042003) 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, 310404196 + ... + 310404205.

It is an arithmetic number, because the mean of its divisors is an integer number (931212603).

Almost surely, 23104042005 is an apocalyptic number.

It is an amenable number.

3104042005 is a deficient number, since it is larger than the sum of its proper divisors (620808407).

3104042005 is an equidigital number, since it uses as much as digits as its factorization.

3104042005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620808406.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3104042005 is about 55713.9300803668. The cubic root of 3104042005 is about 1458.7331860155.

Adding to 3104042005 its reverse (5002404013), we get a palindrome (8106446018).

The spelling of 3104042005 in words is "three billion, one hundred four million, forty-two thousand, five".

Divisors: 1 5 620808401 3104042005