20649216
20,649,216 is an even composite number composed of five prime numbers multiplied together.
20649216 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 20649216:
28 × 3 × 7 × 23 × 167
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 23 × 167)See below for interesting mathematical facts about the number 20649216 from the Numbermatics database.
Names of 20649216
- Cardinal: 20649216 can be written as Twenty million, six hundred forty-nine thousand, two hundred sixteen.
Scientific notation
- Scientific notation: 2.0649216 × 107
Factors of 20649216
Divisors of 20649216
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 23 24 28 32 42 46 48 56 64 69 84 92 96 112 128 138 161 167 168 184 192 224 256 276 322 334 336 368 384 448 483 501 552 644 668 672 736 768 896 966 1002 1104 1169 1288 1336 1344 1472 1792 1932 2004 2208 2338 2576 2672 2688 2944 3507 3841 3864 4008 4416 4676 5152 5344 5376 5888 7014 7682 7728 8016 8832 9352 10304 10688 11523 14028 15364 15456 16032 17664 18704 20608 21376 23046 26887 28056 30728 30912 32064 37408 41216 42752 46092 53774 56112 61456 61824 64128 74816 80661 92184 107548 112224 122912 123648 128256 149632 161322 184368 215096 224448 245824 299264 322644 368736 430192 448896 491648 645288 737472 860384 897792 983296 1290576 1474944 1720768 2581152 2949888 3441536 5162304 6883072 10324608 20649216
- Sum of all divisors σ(n): 65931264
- Sum of proper divisors (its aliquot sum) s(n): 45282048
- 20649216 is an abundant number, because the sum of its proper divisors (45282048) is greater than itself. Its abundance is 24632832
Bases of 20649216
- Binary: 10011101100010101000000002
- Hexadecimal: 0x13B1500
- Base-36: CAL1C
Squares and roots of 20649216
- 20649216 squared (206492162) is 426390121414656
- 20649216 cubed (206492163) is 8804621717357457309696
-
The
square root of 20649216 is 4544.1408428877 -
The
cube root of 20649216 is 274.3476149975
Scales and comparisons
How big is 20649216?- 20,649,216 seconds is equal to 34 weeks, 23 hours, 53 minutes, 36 seconds.
-
To count from 1 to 20,649,216 would take you about fifty-one weeks!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 20649216 cubic inches would be around 22.9 feet tall.
Recreational maths with 20649216
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