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2068286863 = 12891604567
BaseRepresentation
bin111101101000111…
…1000110110001111
312100010211212012011
41323101320312033
513213440134423
6541122322051
7102153101566
oct17321706617
95303755164
102068286863
11971548595
124987b9327
1326c6661a6
14158992bdd
15c18a0b0d
hex7b478d8f

2068286863 has 4 divisors (see below), whose sum is σ = 2069892720. Its totient is φ = 2066681008.

The previous prime is 2068286849. The next prime is 2068286887. The reversal of 2068286863 is 3686828602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2068286863 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068286813) 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, 800995 + ... + 803572.

It is an arithmetic number, because the mean of its divisors is an integer number (517473180).

Almost surely, 22068286863 is an apocalyptic number.

2068286863 is a deficient number, since it is larger than the sum of its proper divisors (1605857).

2068286863 is a wasteful number, since it uses less digits than its factorization.

2068286863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605856.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 2068286863 is about 45478.4219493157. The cubic root of 2068286863 is about 1274.1002213512.

The spelling of 2068286863 in words is "two billion, sixty-eight million, two hundred eighty-six thousand, eight hundred sixty-three".

Divisors: 1 1289 1604567 2068286863