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12802316783 = 15781543419
BaseRepresentation
bin10111110110001001…
…11101100111101111
31020001012211002001212
423323010331213233
5202204343114113
65514210025035
7632152616504
oct137304754757
936035732055
1012802316783
11547a6350a3
12259357817b
131290449099
148963cb4ab
154ede040a8
hex2fb13d9ef

12802316783 has 4 divisors (see below), whose sum is σ = 12883860360. Its totient is φ = 12720773208.

The previous prime is 12802316773. The next prime is 12802316801. The reversal of 12802316783 is 38761320821.

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 12802316783 - 24 = 12802316767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12802316783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12802316773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40771553 + ... + 40771866.

It is an arithmetic number, because the mean of its divisors is an integer number (3220965090).

Almost surely, 212802316783 is an apocalyptic number.

12802316783 is a deficient number, since it is larger than the sum of its proper divisors (81543577).

12802316783 is an equidigital number, since it uses as much as digits as its factorization.

12802316783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81543576.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 12802316783 in words is "twelve billion, eight hundred two million, three hundred sixteen thousand, seven hundred eighty-three".

Divisors: 1 157 81543419 12802316783