221138640
221,138,640 is an even composite number composed of five prime numbers multiplied together.
221138640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 221138640:
24 × 33 × 5 × 37 × 2767
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 37 × 2767)See below for interesting mathematical facts about the number 221138640 from the Numbermatics database.
Names of 221138640
- Cardinal: 221138640 can be written as Two hundred twenty-one million, one hundred thirty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.2113864 × 108
Factors of 221138640
Divisors of 221138640
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 37 40 45 48 54 60 72 74 80 90 108 111 120 135 144 148 180 185 216 222 240 270 296 333 360 370 432 444 540 555 592 666 720 740 888 999 1080 1110 1332 1480 1665 1776 1998 2160 2220 2664 2767 2960 3330 3996 4440 4995 5328 5534 6660 7992 8301 8880 9990 11068 13320 13835 15984 16602 19980 22136 24903 26640 27670 33204 39960 41505 44272 49806 55340 66408 74709 79920 83010 99612 102379 110680 124515 132816 149418 166020 199224 204758 221360 249030 298836 307137 332040 373545 398448 409516 498060 511895 597672 614274 664080 747090 819032 921411 996120 1023790 1195344 1228548 1494180 1535685 1638064 1842822 1992240 2047580 2457096 2764233 2988360 3071370 3685644 4095160 4607055 4914192 5528466 5976720 6142740 7371288 8190320 9214110 11056932 12285480 13821165 14742576 18428220 22113864 24570960 27642330 36856440 44227728 55284660 73712880 110569320 221138640
- Sum of all divisors σ(n): 782568960
- Sum of proper divisors (its aliquot sum) s(n): 561430320
- 221138640 is an abundant number, because the sum of its proper divisors (561430320) is greater than itself. Its abundance is 340291680
Bases of 221138640
- Binary: 11010010111001001110110100002
- Hexadecimal: 0xD2E4ED0
- Base-36: 3NNRO0
Squares and roots of 221138640
- 221138640 squared (2211386402) is 48902298101049600
- 221138640 cubed (2211386403) is 10814187694940691116544000
-
The
square root of 221138640 is 14870.7309840505 -
The
cube root of 221138640 is 604.7207599637
Scales and comparisons
How big is 221138640?- 221,138,640 seconds is equal to 7 years, 1 week, 4 days, 11 hours, 24 minutes.
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To count from 1 to 221,138,640 would take you about ten 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 221138640 cubic inches would be around 50.4 feet tall.
Recreational maths with 221138640
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