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7311065042 = 210325872
BaseRepresentation
bin1101100111100010…
…11111111111010010
3200212112001120210202
412303301133333102
5104433113040132
63205245255202
7346114012301
oct66361377722
920775046722
107311065042
1131119a6416
121500564502
138c68a92b8
144d4db0438
152cbcb1762
hex1b3c5ffd2

7311065042 has 18 divisors (see below), whose sum is σ = 11093000823. Its totient is φ = 3613874892.

The previous prime is 7311065029. The next prime is 7311065051. The reversal of 7311065042 is 2405601137.

It can be written as a sum of positive squares in only one way, i.e., 3655532521 + 3655532521 = 60461^2 + 60461^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=60461.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7311064996 and 7311065014.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12454673 + ... + 12455259.

Almost surely, 27311065042 is an apocalyptic number.

7311065042 is a deficient number, since it is larger than the sum of its proper divisors (3781935781).

7311065042 is an frugal number, since it uses more digits than its factorization.

7311065042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7311065042 is about 85504.7661946397. The cubic root of 7311065042 is about 1940.8570487823.

Adding to 7311065042 its reverse (2405601137), we get a palindrome (9716666179).

The spelling of 7311065042 in words is "seven billion, three hundred eleven million, sixty-five thousand, forty-two".

Divisors: 1 2 103 206 587 1174 10609 21218 60461 120922 344569 689138 6227483 12454966 35490607 70981214 3655532521 7311065042