21001120128
21,001,120,128 is an even composite number composed of five prime numbers multiplied together.
21001120128 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21001120128:
27 × 34 × 192 × 31 × 181
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 19 × 19 × 31 × 181)See below for interesting mathematical facts about the number 21001120128 from the Numbermatics database.
Names of 21001120128
- Cardinal: 21001120128 can be written as Twenty-one billion, one million, one hundred twenty thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1001120128 × 1010
Factors of 21001120128
Divisors of 21001120128
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 19 24 27 31 32 36 38 48 54 57 62 64 72 76 81 93 96 108 114 124 128 144 152 162 171 181 186 192 216 228 248 279 288 304 324 342 361 362 372 384 432 456 496 513 543 558 576 589 608 648 684 722 724 744 837 864 912 992 1026 1083 1086 1116 1152 1178 1216 1296 1368 1444 1448 1488 1539 1629 1674 1728 1767 1824 1984 2052 2166 2172 2232 2356 2432 2511 2592 2736 2888 2896 2976 3078 3249 3258 3348 3439 3456 3534 3648 3968 4104 4332 4344 4464 4712 4887 5022 5184 5301 5472 5611 5776 5792 5952 6156 6498 6516 6696 6878 7068 7296 8208 8664 8688 8928 9424 9747 9774 10044 10317 10368 10602 10944 11191 11222 11552 11584 11904 12312 12996 13032 13392 13756 14136 14661 15903 16416 16833 17328 17376 17856 18848 19494 19548 20088 20634 21204 21888 22382 22444 23104 23168 24624 25992 26064 26784 27512 28272 29241 29322 30951 31806 32832 33573 33666 34656 34752 35712 37696 38988 39096 40176 41268 42408 44764 44888 46208 47709 49248 50499 51984 52128 53568 55024 56544 58482 58644 61902 63612 65341 65664 67146 67332 69312 69504 75392 77976 78192 80352 82536 84816 89528 89776 92853 95418 98496 100719 100998 103968 104256 106609 107136 110048 113088 116964 117288 123804 127224 130682 134292 134664 138624 151497 155952 156384 160704 165072 169632 179056 179552 185706 190836 196023 196992 201438 201996 207936 208512 213218 220096 226176 233928 234576 247608 254448 261364 268584 269328 278559 302157 302994 311904 312768 319827 321408 330144 339264 358112 359104 371412 381672 392046 402876 403992 415872 426436 440192 454491 467856 469152 495216 508896 522728 537168 538656 557118 588069 604314 605988 623808 625536 639654 660288 678528 716224 718208 742824 763344 784092 805752 807984 852872 906471 908982 935712 938304 959481 990432 1017792 1045456 1074336 1077312 1114236 1176138 1208628 1211976 1247616 1279308 1320576 1432448 1485648 1526688 1568184 1611504 1615968 1705744 1764207 1812942 1817964 1871424 1876608 1918962 1980864 2025571 2035584 2090912 2148672 2154624 2228472 2352276 2417256 2423952 2558616 2878443 2971296 3053376 3136368 3223008 3231936 3411488 3528414 3625884 3635928 3742848 3837924 3961728 4051142 4181824 4297344 4456944 4704552 4834512 4847904 5117232 5292621 5756886 5942592 6076713 6106752 6272736 6446016 6463872 6822976 7056828 7251768 7271856 7675848 8102284 8363648 8635329 8913888 9409104 9669024 9695808 10234464 10585242 11513772 11885184 12153426 12545472 12892032 13645952 14113656 14503536 14543712 15351696 16204568 17270658 17827776 18230139 18818208 19338048 19391616 20468928 21170484 23027544 24306852 25090944 28227312 29007072 29087424 30703392 32409136 34541316 35655552 36460278 37636416 38676096 40937856 42340968 46055088 48613704 54690417 56454624 58014144 58174848 61406784 64818272 69082632 72920556 75272832 84681936 92110176 97227408 109380834 112909248 116028288 122813568 129636544 138165264 145841112 164071251 169363872 184220352 194454816 218761668 225818496 259273088 276330528 291682224 328142502 338727744 368440704 388909632 437523336 552661056 583364448 656285004 677455488 777819264 875046672 1105322112 1166728896 1312570008 1750093344 2333457792 2625140016 3500186688 5250280032 7000373376 10500560064 21001120128
- Sum of all divisors σ(n): 68465517120
- Sum of proper divisors (its aliquot sum) s(n): 47464396992
- 21001120128 is an abundant number, because the sum of its proper divisors (47464396992) is greater than itself. Its abundance is 26463276864
Bases of 21001120128
- Binary: 100111000111100001110101001100000002
- Hexadecimal: 0x4E3C3A980
- Base-36: 9NBIW00
Squares and roots of 21001120128
- 21001120128 squared (210011201282) is 441047046630686736384
- 21001120128 cubed (210011201283) is 9262482008390669801936652337152
-
The
square root of 21001120128 is 144917.6322191333 -
The
cube root of 21001120128 is 2758.9732286553
Scales and comparisons
How big is 21001120128?- 21,001,120,128 seconds is equal to 667 years, 40 weeks, 12 hours, 28 minutes, 48 seconds.
-
To count from 1 to 21,001,120,128 would take you about one thousand, three hundred thirty-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 21001120128 cubic inches would be around 229.9 feet tall.
Recreational maths with 21001120128
- 21001120128 backwards is 82102110012
- 21001120128 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21001120128's digits is 18
- More coming soon!
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The information we have on file for 21001120128 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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