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3020311331 = 79173223991
BaseRepresentation
bin1011010000000110…
…0100101100100011
321210111020201020122
42310001210230203
522141144430311
61215411430455
7134563136252
oct26401445443
97714221218
103020311331
11130a983674
127035b542b
1339197658b
142091b2799
1512a2570db
hexb4064b23

3020311331 has 16 divisors (see below), whose sum is σ = 3093135360. Its totient is φ = 2948568480.

The previous prime is 3020311313. The next prime is 3020311367. The reversal of 3020311331 is 1331130203.

It is a cyclic number.

It is not a de Polignac number, because 3020311331 - 26 = 3020311267 is a prime.

It is a super-2 number, since 2×30203113312 = 18244561072333983122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3020317331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3047246 + ... + 3048236.

It is an arithmetic number, because the mean of its divisors is an integer number (193320960).

Almost surely, 23020311331 is an apocalyptic number.

3020311331 is a deficient number, since it is larger than the sum of its proper divisors (72824029).

3020311331 is a wasteful number, since it uses less digits than its factorization.

3020311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3020311331 is about 54957.3592069342. The cubic root of 3020311331 is about 1445.4971419533.

Adding to 3020311331 its reverse (1331130203), we get a palindrome (4351441534).

The spelling of 3020311331 in words is "three billion, twenty million, three hundred eleven thousand, three hundred thirty-one".

Divisors: 1 79 173 223 991 13667 17617 38579 78289 171443 220993 3047741 13543997 17458447 38231789 3020311331