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2028000663 = 3213197312497
BaseRepresentation
bin111100011100000…
…1101010110010111
312020100001002220200
41320320031112113
513123132010123
6533123031543
7101153502243
oct17070152627
95210032820
102028000663
11950831a07
1248720b5b3
132641cc2c0
141534a7423
15bd094143
hex78e0d597

2028000663 has 48 divisors (see below), whose sum is σ = 3366461280. Its totient is φ = 1166026752.

The previous prime is 2028000661. The next prime is 2028000679. The reversal of 2028000663 is 3660008202.

It is not a de Polignac number, because 2028000663 - 21 = 2028000661 is a prime.

It is a super-2 number, since 2×20280006632 = 8225573378256879138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028000661) 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 47 ways as a sum of consecutive naturals, for example, 156031 + ... + 168527.

It is an arithmetic number, because the mean of its divisors is an integer number (70134610).

Almost surely, 22028000663 is an apocalyptic number.

2028000663 is a deficient number, since it is larger than the sum of its proper divisors (1338460617).

2028000663 is a wasteful number, since it uses less digits than its factorization.

2028000663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12608 (or 12605 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2028000663 is about 45033.3283580061. The cubic root of 2028000663 is about 1265.7735925545.

Adding to 2028000663 its reverse (3660008202), we get a palindrome (5688008865).

The spelling of 2028000663 in words is "two billion, twenty-eight million, six hundred sixty-three", and thus it is an aban number.

Divisors: 1 3 9 13 19 39 57 73 117 171 219 247 657 741 949 1387 2223 2847 4161 8541 12483 12497 18031 37491 54093 112473 162279 162461 237443 487383 712329 912281 1462149 2136987 2736843 3086759 8210529 9260277 11859653 17333339 27780831 35578959 52000017 106736877 156000051 225333407 676000221 2028000663