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2020351680 = 26335233837
BaseRepresentation
bin111100001101100…
…0001111011000000
312012210122111111000
41320123001323000
513114202223210
6532251052000
7101031464064
oct17033017300
95183574430
102020351680
11947488136
12484741000
13262751889
14152475aa4
15bc582ac0
hex786c1ec0

2020351680 has 112 divisors (see below), whose sum is σ = 7127382240. Its totient is φ = 538758144.

The previous prime is 2020351673. The next prime is 2020351693. The reversal of 2020351680 is 861530202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108279 + ... + 125558.

Almost surely, 22020351680 is an apocalyptic number.

2020351680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020351680 is an abundant number, since it is smaller than the sum of its proper divisors (5107030560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020351680 is a wasteful number, since it uses less digits than its factorization.

2020351680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233863 (or 233847 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2020351680 is about 44948.3223268678. The cubic root of 2020351680 is about 1264.1802205242.

Adding to 2020351680 its reverse (861530202), we get a palindrome (2881881882).

The spelling of 2020351680 in words is "two billion, twenty million, three hundred fifty-one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 540 576 720 864 960 1080 1440 1728 2160 2880 4320 8640 233837 467674 701511 935348 1169185 1403022 1870696 2104533 2338370 2806044 3507555 3741392 4209066 4676740 5612088 6313599 7015110 7482784 8418132 9353480 10522665 11224176 12627198 14030220 14965568 16836264 18706960 21045330 22448352 25254396 28060440 31567995 33672528 37413920 42090660 44896704 50508792 56120880 63135990 67345056 74827840 84181320 101017584 112241760 126271980 134690112 168362640 202035168 224483520 252543960 336725280 404070336 505087920 673450560 1010175840 2020351680