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2000808771 = 313183128019
BaseRepresentation
bin111011101000001…
…1110101101000011
312011102212121122120
41313100132231003
513044201340041
6530312135323
7100403410503
oct16720365503
95142777576
102000808771
1193744a275
1247a097543
1325b69b520
1414da29a03
15ba9c2366
hex7741eb43

2000808771 has 16 divisors (see below), whose sum is σ = 2874627840. Its totient is φ = 1230550560.

The previous prime is 2000808769. The next prime is 2000808779. The reversal of 2000808771 is 1778080002.

It is not a de Polignac number, because 2000808771 - 21 = 2000808769 is a prime.

It is a super-2 number, since 2×20008087712 = 8006471476221060882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2000808779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57400 + ... + 85418.

It is an arithmetic number, because the mean of its divisors is an integer number (179664240).

Almost surely, 22000808771 is an apocalyptic number.

2000808771 is a deficient number, since it is larger than the sum of its proper divisors (873819069).

2000808771 is a wasteful number, since it uses less digits than its factorization.

2000808771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29866.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 2000808771 is about 44730.4009707045. The cubic root of 2000808771 is about 1260.0908582755.

Adding to 2000808771 its reverse (1778080002), we get a palindrome (3778888773).

The spelling of 2000808771 in words is "two billion, eight hundred eight thousand, seven hundred seventy-one".

Divisors: 1 3 13 39 1831 5493 23803 28019 71409 84057 364247 1092741 51302789 153908367 666936257 2000808771