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3013131665 = 51382943577
BaseRepresentation
bin1011001110011000…
…1011110110010001
321202222201221121002
42303212023312101
522132330203130
61214553511345
7134445124265
oct26346136621
97688657532
103013131665
11130691a465
12701112555
1339033165b
142082640a5
151297d9b45
hexb398bd91

3013131665 has 8 divisors (see below), whose sum is σ = 3616102440. Its totient is φ = 2410275712.

The previous prime is 3013131659. The next prime is 3013131703. The reversal of 3013131665 is 5661313103.

It is a Cunningham number, because it is equal to 548922+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 3013131664 = 1^2 + 54892^2 .

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 3013131665 - 210 = 3013130641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47357 + ... + 90933.

It is an arithmetic number, because the mean of its divisors is an integer number (452012805).

Almost surely, 23013131665 is an apocalyptic number.

It is an amenable number.

3013131665 is a deficient number, since it is larger than the sum of its proper divisors (602970775).

3013131665 is a wasteful number, since it uses less digits than its factorization.

3013131665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57411.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 3013131665 is about 54892.0000091088. Note that the first 5 decimals coincide. The cubic root of 3013131665 is about 1444.3508560413.

Adding to 3013131665 its reverse (5661313103), we get a palindrome (8674444768).

The spelling of 3013131665 in words is "three billion, thirteen million, one hundred thirty-one thousand, six hundred sixty-five".

Divisors: 1 5 13829 43577 69145 217885 602626333 3013131665