30728765440
30,728,765,440 is an even composite number composed of five prime numbers multiplied together.
30728765440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 30728765440:
214 × 5 × 23 × 47 × 347
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 23 × 47 × 347)See below for interesting mathematical facts about the number 30728765440 from the Numbermatics database.
Names of 30728765440
- Cardinal: 30728765440 can be written as Thirty billion, seven hundred twenty-eight million, seven hundred sixty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 3.072876544 × 1010
Factors of 30728765440
Divisors of 30728765440
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 4 5 8 10 16 20 23 32 40 46 47 64 80 92 94 115 128 160 184 188 230 235 256 320 347 368 376 460 470 512 640 694 736 752 920 940 1024 1081 1280 1388 1472 1504 1735 1840 1880 2048 2162 2560 2776 2944 3008 3470 3680 3760 4096 4324 5120 5405 5552 5888 6016 6940 7360 7520 7981 8192 8648 10240 10810 11104 11776 12032 13880 14720 15040 15962 16309 16384 17296 20480 21620 22208 23552 24064 27760 29440 30080 31924 32618 34592 39905 40960 43240 44416 47104 48128 55520 58880 60160 63848 65236 69184 79810 81545 81920 86480 88832 94208 96256 111040 117760 120320 127696 130472 138368 159620 163090 172960 177664 188416 192512 222080 235520 240640 255392 260944 276736 319240 326180 345920 355328 375107 376832 385024 444160 471040 481280 510784 521888 553472 638480 652360 691840 710656 750214 770048 888320 942080 962560 1021568 1043776 1106944 1276960 1304720 1383680 1421312 1500428 1776640 1875535 1884160 1925120 2043136 2087552 2213888 2553920 2609440 2767360 2842624 3000856 3553280 3751070 3850240 4086272 4175104 4427776 5107840 5218880 5534720 5685248 6001712 7106560 7502140 8172544 8350208 8855552 10215680 10437760 11069440 12003424 14213120 15004280 16345088 16700416 17711104 20431360 20875520 22138880 24006848 28426240 30008560 32690176 33400832 40862720 41751040 44277760 48013696 60017120 65380352 66801664 81725440 83502080 88555520 96027392 120034240 130760704 133603328 163450880 167004160 192054784 240068480 267206656 326901760 334008320 384109568 480136960 653803520 668016640 768219136 960273920 1336033280 1536438272 1920547840 3072876544 3841095680 6145753088 7682191360 15364382720 30728765440
- Sum of all divisors σ(n): 78816955392
- Sum of proper divisors (its aliquot sum) s(n): 48088189952
- 30728765440 is an abundant number, because the sum of its proper divisors (48088189952) is greater than itself. Its abundance is 17359424512
Bases of 30728765440
- Binary: 111001001111001001111000000000000002
- Hexadecimal: 0x72793C000
- Base-36: E47435S
Squares and roots of 30728765440
- 30728765440 squared (307287654402) is 944257025466538393600
- 30728765440 cubed (307287654403) is 29015852650633364865688797184000
-
The
square root of 30728765440 is 175296.2219786839 -
The
cube root of 30728765440 is 3132.1919625371
Scales and comparisons
How big is 30728765440?- 30,728,765,440 seconds is equal to 977 years, 4 weeks, 1 day, 10 minutes, 40 seconds.
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To count from 1 to 30,728,765,440 would take you about one thousand, nine hundred fifty-four 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 30728765440 cubic inches would be around 261 feet tall.
Recreational maths with 30728765440
- 30728765440 backwards is 04456782703
- 30728765440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 30728765440's digits is 46
- More coming soon!
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