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805748047 = 1361980619
BaseRepresentation
bin110000000001101…
…011110101001111
32002011011020112021
4300001223311033
53122232414142
6211541551011
725652513446
oct6001536517
92064136467
10805748047
11383907485
121a5a15467
13cac162c0
1479023d5d
154ab10267
hex3006bd4f

805748047 has 4 divisors (see below), whose sum is σ = 867728680. Its totient is φ = 743767416.

The previous prime is 805748033. The next prime is 805748059. The reversal of 805748047 is 740847508.

805748047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 805748047 - 223 = 797359439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 805747994 and 805748012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805748017) 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, 30990297 + ... + 30990322.

It is an arithmetic number, because the mean of its divisors is an integer number (216932170).

Almost surely, 2805748047 is an apocalyptic number.

805748047 is a deficient number, since it is larger than the sum of its proper divisors (61980633).

805748047 is a wasteful number, since it uses less digits than its factorization.

805748047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61980632.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 805748047 is about 28385.7014533726. The cubic root of 805748047 is about 930.5358021667.

The spelling of 805748047 in words is "eight hundred five million, seven hundred forty-eight thousand, forty-seven".

Divisors: 1 13 61980619 805748047