21155605120
21,155,605,120 is an even composite number composed of six prime numbers multiplied together.
21155605120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21155605120:
27 × 5 × 13 × 17 × 373 × 401
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 17 × 373 × 401)See below for interesting mathematical facts about the number 21155605120 from the Numbermatics database.
Names of 21155605120
- Cardinal: 21155605120 can be written as Twenty-one billion, one hundred fifty-five million, six hundred five thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.115560512 × 1010
Factors of 21155605120
Divisors of 21155605120
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 128 130 136 160 170 208 221 260 272 320 340 373 401 416 442 520 544 640 680 746 802 832 884 1040 1088 1105 1360 1492 1604 1664 1768 1865 2005 2080 2176 2210 2720 2984 3208 3536 3730 4010 4160 4420 4849 5213 5440 5968 6341 6416 6817 7072 7460 8020 8320 8840 9698 10426 10880 11936 12682 12832 13634 14144 14920 16040 17680 19396 20852 23872 24245 25364 25664 26065 27268 28288 29840 31705 32080 34085 35360 38792 41704 47744 48490 50728 51328 52130 54536 59680 63410 64160 68170 70720 77584 82433 83408 88621 96980 101456 104260 109072 119360 126820 128320 136340 141440 149573 155168 164866 166816 177242 193960 202912 208520 218144 238720 253640 256640 272680 299146 310336 329732 333632 354484 387920 405824 412165 417040 436288 443105 507280 545360 598292 620672 659464 667264 708968 747865 775840 811648 824330 834080 872576 886210 1014560 1090720 1196584 1318928 1417936 1495730 1551680 1648660 1668160 1772420 1944449 2029120 2181440 2393168 2542741 2637856 2835872 2991460 3103360 3297320 3336320 3544840 3888898 4058240 4362880 4786336 5085482 5275712 5671744 5982920 6594640 7089680 7777796 9572672 9722245 10170964 10551424 11343488 11965840 12713705 13189280 14179360 15555592 19145344 19444490 20341928 23931680 25427410 26378560 28358720 31111184 33055633 38888980 40683856 47863360 50854820 52757120 56717440 62222368 66111266 77777960 81367712 95726720 101709640 124444736 132222532 155555920 162735424 165278165 203419280 248889472 264445064 311111840 325470848 330556330 406838560 528890128 622223680 661112660 813677120 1057780256 1244447360 1322225320 1627354240 2115560512 2644450640 4231121024 5288901280 10577802560 21155605120
- Sum of all divisors σ(n): 57968174880
- Sum of proper divisors (its aliquot sum) s(n): 36812569760
- 21155605120 is an abundant number, because the sum of its proper divisors (36812569760) is greater than itself. Its abundance is 15656964640
Bases of 21155605120
- Binary: 100111011001111100011101010100000002
- Hexadecimal: 0x4ECF8EA80
- Base-36: 9PVI1DS
Squares and roots of 21155605120
- 21155605120 squared (211556051202) is 447559627993370214400
- 21155605120 cubed (211556051203) is 9468394757481838233816137728000
-
The
square root of 21155605120 is 145449.6652454037 -
The
cube root of 21155605120 is 2765.7217434693
Scales and comparisons
How big is 21155605120?- 21,155,605,120 seconds is equal to 672 years, 35 weeks, 3 days, 12 hours, 58 minutes, 40 seconds.
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To count from 1 to 21,155,605,120 would take you about one thousand, three hundred forty-five 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 21155605120 cubic inches would be around 230.5 feet tall.
Recreational maths with 21155605120
- 21155605120 backwards is 02150655112
- The number of decimal digits it has is: 11
- The sum of 21155605120's digits is 28
- More coming soon!
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The information we have on file for 21155605120 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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