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10728663307 = 13778311411
BaseRepresentation
bin10011111110111101…
…00110100100001011
31000200200212120021021
421333132212210023
5133433014211212
64532332253311
7526603063525
oct117736464413
930620776237
1010728663307
11460606159a
1220b5011237
13101c9542ab
1473ac3ca15
1542bd43307
hex27f7a690b

10728663307 has 4 divisors (see below), whose sum is σ = 10806974856. Its totient is φ = 10650351760.

The previous prime is 10728663287. The next prime is 10728663311. The reversal of 10728663307 is 70336682701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70336682701 = 431635736807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10728663307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10728663107) 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, 39155569 + ... + 39155842.

It is an arithmetic number, because the mean of its divisors is an integer number (2701743714).

Almost surely, 210728663307 is an apocalyptic number.

10728663307 is a deficient number, since it is larger than the sum of its proper divisors (78311549).

10728663307 is an equidigital number, since it uses as much as digits as its factorization.

10728663307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78311548.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 10728663307 in words is "ten billion, seven hundred twenty-eight million, six hundred sixty-three thousand, three hundred seven".

Divisors: 1 137 78311411 10728663307