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2268678655 = 53178831621
BaseRepresentation
bin1000011100111001…
…0100100111111111
312212002220211001101
42013032110213333
514121240204110
61013041353531
7110135310325
oct20716244777
95762824041
102268678655
11a64678941
125339388a7
132a2029909
14177437d15
15d428613a
hex873949ff

2268678655 has 16 divisors (see below), whose sum is σ = 2735781984. Its totient is φ = 1806053760.

The previous prime is 2268678649. The next prime is 2268678683. The reversal of 2268678655 is 5568768622.

It is not a de Polignac number, because 2268678655 - 23 = 2268678647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2268678596 and 2268678605.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1398745 + ... + 1400365.

It is an arithmetic number, because the mean of its divisors is an integer number (170986374).

Almost surely, 22268678655 is an apocalyptic number.

2268678655 is a deficient number, since it is larger than the sum of its proper divisors (467103329).

2268678655 is a wasteful number, since it uses less digits than its factorization.

2268678655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826.

The product of its digits is 9676800, while the sum is 55.

The square root of 2268678655 is about 47630.6482739843. The cubic root of 2268678655 is about 1313.9867775111.

The spelling of 2268678655 in words is "two billion, two hundred sixty-eight million, six hundred seventy-eight thousand, six hundred fifty-five".

Divisors: 1 5 317 883 1585 1621 4415 8105 279911 513857 1399555 1431343 2569285 7156715 453735731 2268678655