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3115145045 = 51374547657
BaseRepresentation
bin1011100110101101…
…0101011101010101
322001002200202122102
42321223111131111
522334434120140
61233040211445
7140124203345
oct27153253525
98032622572
103115145045
111359466641
1272b309b85
133a84cb6bc
14217a1ad25
1513373ae15
hexb9ad5755

3115145045 has 8 divisors (see below), whose sum is σ = 3765460824. Its totient is φ = 2473924864.

The previous prime is 3115145041. The next prime is 3115145053. The reversal of 3115145045 is 5405415113.

It can be written as a sum of positive squares in 4 ways, for example, as 666775684 + 2448369361 = 25822^2 + 49481^2 .

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 3115145045 - 22 = 3115145041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3115144999 and 3115145017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115145041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2273144 + ... + 2274513.

It is an arithmetic number, because the mean of its divisors is an integer number (470682603).

Almost surely, 23115145045 is an apocalyptic number.

It is an amenable number.

3115145045 is a deficient number, since it is larger than the sum of its proper divisors (650315779).

3115145045 is a wasteful number, since it uses less digits than its factorization.

3115145045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547799.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 3115145045 is about 55813.4844370068. The cubic root of 3115145045 is about 1460.4703940281.

The spelling of 3115145045 in words is "three billion, one hundred fifteen million, one hundred forty-five thousand, forty-five".

Divisors: 1 5 137 685 4547657 22738285 623029009 3115145045