51379920
51,379,920 is an even composite number composed of four prime numbers multiplied together.
51379920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 51379920:
24 × 36 × 5 × 881
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 881)See below for interesting mathematical facts about the number 51379920 from the Numbermatics database.
Names of 51379920
- Cardinal: 51379920 can be written as Fifty-one million, three hundred seventy-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 5.137992 × 107
Factors of 51379920
Divisors of 51379920
- Number of divisors d(n): 140
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 729 810 881 972 1080 1215 1296 1458 1620 1762 1944 2160 2430 2643 2916 3240 3524 3645 3888 4405 4860 5286 5832 6480 7048 7290 7929 8810 9720 10572 11664 13215 14096 14580 15858 17620 19440 21144 23787 26430 29160 31716 35240 39645 42288 47574 52860 58320 63432 70480 71361 79290 95148 105720 118935 126864 142722 158580 190296 211440 214083 237870 285444 317160 356805 380592 428166 475740 570888 634320 642249 713610 856332 951480 1070415 1141776 1284498 1427220 1712664 1902960 2140830 2568996 2854440 3211245 3425328 4281660 5137992 5708880 6422490 8563320 10275984 12844980 17126640 25689960 51379920
- Sum of all divisors σ(n): 179308836
- Sum of proper divisors (its aliquot sum) s(n): 127928916
- 51379920 is an abundant number, because the sum of its proper divisors (127928916) is greater than itself. Its abundance is 76548996
Bases of 51379920
- Binary: 110000111111111110110100002
- Hexadecimal: 0x30FFED0
- Base-36: UL900
Squares and roots of 51379920
- 51379920 squared (513799202) is 2639896179206400
- 51379920 cubed (513799203) is 135637654495930495488000
-
The
square root of 51379920 is 7167.9787946115 -
The
cube root of 51379920 is 371.7615537479
Scales and comparisons
How big is 51379920?- 51,379,920 seconds is equal to 1 year, 32 weeks, 6 days, 16 hours, 12 minutes.
-
To count from 1 to 51,379,920 would take you about two years!
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 51379920 cubic inches would be around 31 feet tall.
Recreational maths with 51379920
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