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2668744485 = 325116738011
BaseRepresentation
bin1001111100010001…
…1100111100100101
320212222201021012100
42133010130330211
520431144310420
61120452242313
7123063645111
oct23704347445
96788637170
102668744485
11114a489260
12625910399
13336b92164
141b4618741
1510945e190
hex9f11cf25

2668744485 has 48 divisors (see below), whose sum is σ = 5054482368. Its totient is φ = 1291852800.

The previous prime is 2668744483. The next prime is 2668744511. The reversal of 2668744485 is 5844478662.

It is a happy number.

It is not a de Polignac number, because 2668744485 - 21 = 2668744483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668744483) 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, 329130 + ... + 337140.

It is an arithmetic number, because the mean of its divisors is an integer number (105301716).

Almost surely, 22668744485 is an apocalyptic number.

It is an amenable number.

2668744485 is a deficient number, since it is larger than the sum of its proper divisors (2385737883).

2668744485 is a wasteful number, since it uses less digits than its factorization.

2668744485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706 (or 8703 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The square root of 2668744485 is about 51659.8924214908. The cubic root of 2668744485 is about 1387.0826248877.

The spelling of 2668744485 in words is "two billion, six hundred sixty-eight million, seven hundred forty-four thousand, four hundred eighty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 673 2019 3365 6057 7403 8011 10095 22209 24033 30285 37015 40055 66627 72099 88121 111045 120165 264363 333135 360495 440605 793089 1321815 3965445 5391403 16174209 26957015 48522627 59305433 80871045 177916299 242613135 296527165 533748897 889581495 2668744485