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2065788853 = 12771617689
BaseRepresentation
bin111101100100001…
…0110111110110101
312022222010221120021
41323020112332311
513212320220403
6540553005141
7102122626012
oct17310267665
95288127507
102065788853
119700a1817
124979b37b1
1326bca018b
14158502709
15c155a8bd
hex7b216fb5

2065788853 has 4 divisors (see below), whose sum is σ = 2067407820. Its totient is φ = 2064169888.

The previous prime is 2065788839. The next prime is 2065788863. The reversal of 2065788853 is 3588875602.

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 1524668209 + 541120644 = 39047^2 + 23262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065788853 - 29 = 2065788341 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 2065788853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065788833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807568 + ... + 810121.

It is an arithmetic number, because the mean of its divisors is an integer number (516851955).

Almost surely, 22065788853 is an apocalyptic number.

It is an amenable number.

2065788853 is a deficient number, since it is larger than the sum of its proper divisors (1618967).

2065788853 is a wasteful number, since it uses less digits than its factorization.

2065788853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618966.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The square root of 2065788853 is about 45450.9499680700. The cubic root of 2065788853 is about 1273.5870756914.

The spelling of 2065788853 in words is "two billion, sixty-five million, seven hundred eighty-eight thousand, eight hundred fifty-three".

Divisors: 1 1277 1617689 2065788853