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712666064057 = 1949365657293
BaseRepresentation
bin10100101111011100011…
…01010010010010111001
32112010111220221010012112
422113232031102102321
543134020003022212
61303221055022105
7102326346410663
oct12275615222271
92463456833175
10712666064057
11255270461032
12b615250a935
13522865bb4bc
14266c9585533
1513811045422
hexa5ee3524b9

712666064057 has 4 divisors (see below), whose sum is σ = 713031723300. Its totient is φ = 712300404816.

The previous prime is 712666064021. The next prime is 712666064059. The reversal of 712666064057 is 750460666217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226472243881 + 486193820176 = 475891^2 + 697276^2 .

It is a cyclic number.

It is not a de Polignac number, because 712666064057 - 210 = 712666063033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 712666063996 and 712666064014.

It is not an unprimeable number, because it can be changed into a prime (712666064059) 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, 182826698 + ... + 182830595.

It is an arithmetic number, because the mean of its divisors is an integer number (178257930825).

Almost surely, 2712666064057 is an apocalyptic number.

It is an amenable number.

712666064057 is a deficient number, since it is larger than the sum of its proper divisors (365659243).

712666064057 is a wasteful number, since it uses less digits than its factorization.

712666064057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365659242.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 712666064057 in words is "seven hundred twelve billion, six hundred sixty-six million, sixty-four thousand, fifty-seven".

Divisors: 1 1949 365657293 712666064057