21008451672
21,008,451,672 is an even composite number composed of seven prime numbers multiplied together.
21008451672 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21008451672:
23 × 32 × 13 × 29 × 79 × 97 × 101
(2 × 2 × 2 × 3 × 3 × 13 × 29 × 79 × 97 × 101)See below for interesting mathematical facts about the number 21008451672 from the Numbermatics database.
Names of 21008451672
- Cardinal: 21008451672 can be written as Twenty-one billion, eight million, four hundred fifty-one thousand, six hundred seventy-two.
Scientific notation
- Scientific notation: 2.1008451672 × 1010
Factors of 21008451672
Divisors of 21008451672
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 6 8 9 12 13 18 24 26 29 36 39 52 58 72 78 79 87 97 101 104 116 117 156 158 174 194 202 232 234 237 261 291 303 312 316 348 377 388 404 468 474 522 582 606 632 696 711 754 776 808 873 909 936 948 1027 1044 1131 1164 1212 1261 1313 1422 1508 1746 1818 1896 2054 2088 2262 2291 2328 2424 2522 2626 2813 2844 2929 3016 3081 3393 3492 3636 3783 3939 4108 4524 4582 5044 5252 5626 5688 5858 6162 6786 6873 6984 7272 7566 7663 7878 7979 8216 8439 8787 9048 9164 9243 9797 10088 10504 11252 11349 11716 11817 12324 13572 13746 15132 15326 15756 15958 16878 17574 18328 18486 19594 20619 22504 22698 22989 23432 23634 23937 24648 25317 26361 27144 27492 29391 29783 30264 30652 31512 31916 33756 35148 36569 36972 38077 39188 41238 45396 45978 47268 47874 50634 52722 54984 58782 59566 61304 63832 67512 68967 70296 71811 73138 73944 76154 78376 82476 88173 89349 90792 91956 94536 95748 99619 101268 103727 105444 109707 114231 117564 119132 127361 137934 143622 146276 152308 164952 176346 178698 183912 191496 199238 202536 207454 210888 219414 222227 228462 231391 235128 238264 254722 268047 275868 284113 287244 292552 298857 304616 311181 329121 342693 352692 357396 382083 398476 414908 438828 444454 456924 462782 509444 536094 551736 568226 574488 597714 622362 658242 666681 685386 694173 705384 714792 764166 773963 796952 829816 852339 877656 888908 896571 913848 925564 933543 1018888 1072188 1136452 1146249 1195428 1244724 1316484 1333362 1370772 1388346 1528332 1547926 1704678 1777816 1793142 1851128 1867086 2000043 2082519 2144376 2272904 2292498 2321889 2390856 2489448 2557017 2632968 2666724 2741544 2776692 2888951 3008083 3056664 3095852 3409356 3586284 3693469 3734172 4000086 4165038 4584996 4643778 5114034 5333448 5553384 5777902 6016166 6191704 6818712 6965667 7172568 7386938 7468344 8000172 8330076 8666853 9024249 9169992 9287556 10061519 10228068 11080407 11555804 12032332 13931334 14773876 16000344 16660152 17333706 18048498 18575112 20123038 20456136 22160814 22444927 23111608 24064664 26000559 27072747 27862668 29547752 30184557 33241221 34667412 36096996 40246076 44321628 44889854 52001118 54145494 55725336 60369114 66482442 67334781 69334824 72193992 80492152 88643256 89779708 90553671 104002236 108290988 120738228 132964884 134669562 179559416 181107342 202004343 208004472 216581976 241476456 265929768 269339124 291784051 362214684 404008686 538678248 583568102 724429368 808017372 875352153 1167136204 1616034744 1750704306 2334272408 2626056459 3501408612 5252112918 7002817224 10504225836 21008451672
- Sum of all divisors σ(n): 65493792000
- Sum of proper divisors (its aliquot sum) s(n): 44485340328
- 21008451672 is an abundant number, because the sum of its proper divisors (44485340328) is greater than itself. Its abundance is 23476888656
Bases of 21008451672
- Binary: 100111001000011001110001000010110002
- Hexadecimal: 0x4E4338858
- Base-36: 9NFW120
Squares and roots of 21008451672
- 21008451672 squared (210084516722) is 441355041654759595584
- 21008451672 cubed (210084516723) is 9272186062797563872604728616448
-
The
square root of 21008451672 is 144942.9255672727 -
The
cube root of 21008451672 is 2759.2942461395
Scales and comparisons
How big is 21008451672?- 21,008,451,672 seconds is equal to 668 years, 1 day, 9 hours, 1 minute, 12 seconds.
-
To count from 1 to 21,008,451,672 would take you about one thousand, three hundred thirty-six 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 21008451672 cubic inches would be around 229.9 feet tall.
Recreational maths with 21008451672
- 21008451672 backwards is 27615480012
- 21008451672 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21008451672's digits is 36
- More coming soon!
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