21428507664720
21,428,507,664,720 is an even composite number composed of seven prime numbers multiplied together.
21428507664720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21428507664720:
24 × 32 × 5 × 13 × 19 × 1609 × 74887
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 19 × 1609 × 74887)See below for interesting mathematical facts about the number 21428507664720 from the Numbermatics database.
Names of 21428507664720
- Cardinal: 21428507664720 can be written as Twenty-one trillion, four hundred twenty-eight billion, five hundred seven million, six hundred sixty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.142850766472 × 1013
Factors of 21428507664720
Divisors of 21428507664720
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 36 38 39 40 45 48 52 57 60 65 72 76 78 80 90 95 104 114 117 120 130 144 152 156 171 180 190 195 208 228 234 240 247 260 285 304 312 342 360 380 390 456 468 494 520 570 585 624 684 720 741 760 780 855 912 936 988 1040 1140 1170 1235 1368 1482 1520 1560 1609 1710 1872 1976 2223 2280 2340 2470 2736 2964 3120 3218 3420 3705 3952 4446 4560 4680 4827 4940 5928 6436 6840 7410 8045 8892 9360 9654 9880 11115 11856 12872 13680 14481 14820 16090 17784 19308 19760 20917 22230 24135 25744 28962 29640 30571 32180 35568 38616 41834 44460 48270 57924 59280 61142 62751 64360 72405 74887 77232 83668 88920 91713 96540 104585 115848 122284 125502 128720 144810 149774 152855 167336 177840 183426 188253 193080 209170 224661 231696 244568 251004 275139 289620 299548 305710 313755 334672 366852 374435 376506 386160 397423 418340 449322 458565 489136 502008 550278 579240 599096 611420 627510 673983 733704 748870 753012 794846 836680 898644 917130 941265 973531 1004016 1100556 1123305 1158480 1192269 1198192 1222840 1255020 1347966 1375695 1422853 1467408 1497740 1506024 1589692 1673360 1797288 1834260 1882530 1947062 1987115 2201112 2246610 2384538 2445680 2510040 2695932 2751390 2845706 2920593 2995480 3012048 3179384 3369915 3576807 3594576 3668520 3765060 3894124 3974230 4268559 4402224 4493220 4769076 4867655 5020080 5391864 5502780 5691412 5841186 5961345 5990960 6358768 6739830 7114265 7153614 7337040 7530120 7788248 7948460 8537118 8761779 8986440 9538152 9735310 10783728 11005560 11382824 11682372 11922690 12805677 13479660 14228530 14307228 14602965 15060240 15576496 15896920 17074236 17523558 17884035 17972880 18497089 19076304 19470620 21342795 22011120 22765648 23364744 23845380 25611354 26959320 28457060 28614456 29205930 31793840 34148472 35047116 35768070 36994178 38941240 42685590 43808895 46729488 47690760 51222708 53918640 55491267 56914120 57228912 58411860 64028385 68296944 70094232 71536140 73988356 77882480 85371180 87617790 92485445 95381520 102445416 110982534 113828240 116823720 120493183 128056770 140188464 143072280 147976712 166473801 170742360 175235580 184970890 204890832 221965068 233647440 240986366 256113540 277456335 286144560 295953424 332947602 341484720 350471160 361479549 369941780 443930136 481972732 512227080 554912670 602465915 665895204 700942320 722959098 739883560 832369005 887860272 963945464 1024454160 1084438647 1109825340 1204931830 1331790408 1445918196 1479767120 1566411379 1664738010 1807397745 1927890928 2168877294 2219650680 2289370477 2409863660 2663580816 2891836392 3132822758 3329476020 3614795490 4337754588 4439301360 4578740954 4699234137 4819727320 5422193235 5783672784 6265645516 6658952040 6868111431 7229590980 7832056895 8675509176 9157481908 9398468274 9639454640 10844386470 11446852385 12531291032 13317904080 13736222862 14097702411 14459181960 15664113790 17351018352 18314963816 18796936548 20604334293 21688772940 22893704770 23496170685 25062582064 27472445724 28195404822 28918363920 29761816201 31328227580 34340557155 36629927632 37593873096 41208668586 43377545880 45787409540 46992341370 54944891448 56390809644 59523632402 62656455160 68681114310 70488512055 75187746192 82417337172 86755091760 89285448603 91574819080 93984682740 103021671465 109889782896 112781619288 119047264804 125312910320 137362228620 140977024110 148809081005 164834674344 178570897206 183149638160 187969365480 206043342930 225563238576 238094529608 267856345809 274724457240 281954048220 297618162010 329669348688 357141794412 375938730960 412086685860 446427243015 476189059216 535712691618 549448914480 563908096440 595236324020 714283588824 824173371720 892854486030 1071425383236 1127816192880 1190472648040 1339281729045 1428567177648 1648346743440 1785708972060 2142850766472 2380945296080 2678563458090 3571417944120 4285701532944 5357126916180 7142835888240 10714253832360 21428507664720
- Sum of all divisors σ(n): 81630496147200
- Sum of proper divisors (its aliquot sum) s(n): 60201988482480
- 21428507664720 is an abundant number, because the sum of its proper divisors (60201988482480) is greater than itself. Its abundance is 38773480817760
Bases of 21428507664720
- Binary: 1001101111101001101101001011001100001010100002
- Hexadecimal: 0x137D36966150
- Base-36: 7LG4C71W0
Squares and roots of 21428507664720
- 21428507664720 squared (214285076647202) is 459180940736963787932678400
- 21428507664720 cubed (214285076647203) is 9839562308075368615136483737758786048000
-
The
square root of 21428507664720 is 4629093.6115745165 -
The
cube root of 21428507664720 is 27775.6336641817
Scales and comparisons
How big is 21428507664720?- 21,428,507,664,720 seconds is equal to 681,360 years, 13 weeks, 4 days, 12 minutes.
-
To count from 1 to 21,428,507,664,720 would take you about one million, seven hundred three thousand, four hundred 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 21428507664720 cubic inches would be around 2314.6 feet tall.
Recreational maths with 21428507664720
- 21428507664720 backwards is 02746670582412
- The number of decimal digits it has is: 14
- The sum of 21428507664720's digits is 54
- More coming soon!
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