21449799840
21,449,799,840 is an even composite number composed of seven prime numbers multiplied together.
21449799840 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 21449799840:
25 × 3 × 5 × 7 × 37 × 47 × 3671
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 37 × 47 × 3671)See below for interesting mathematical facts about the number 21449799840 from the Numbermatics database.
Names of 21449799840
- Cardinal: 21449799840 can be written as Twenty-one billion, four hundred forty-nine million, seven hundred ninety-nine thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.144979984 × 1010
Factors of 21449799840
Divisors of 21449799840
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 37 40 42 47 48 56 60 70 74 80 84 94 96 105 111 112 120 140 141 148 160 168 185 188 210 222 224 235 240 259 280 282 296 329 336 370 376 420 444 470 480 518 555 560 564 592 658 672 705 740 752 777 840 888 940 987 1036 1110 1120 1128 1184 1295 1316 1410 1480 1504 1554 1645 1680 1739 1776 1880 1974 2072 2220 2256 2590 2632 2820 2960 3108 3290 3360 3478 3552 3671 3760 3885 3948 4144 4440 4512 4935 5180 5217 5264 5640 5920 6216 6580 6956 7342 7520 7770 7896 8288 8695 8880 9870 10360 10434 10528 11013 11280 12173 12432 13160 13912 14684 15540 15792 17390 17760 18355 19740 20720 20868 22026 22560 24346 24864 25697 26085 26320 27824 29368 31080 31584 34780 36519 36710 39480 41440 41736 44052 48692 51394 52170 52640 55065 55648 58736 60865 62160 69560 73038 73420 77091 78960 83472 88104 97384 102788 104340 110130 117472 121730 124320 128485 135827 139120 146076 146840 154182 157920 166944 172537 176208 182595 194768 205576 208680 220260 243460 256970 271654 278240 292152 293680 308364 345074 352416 365190 385455 389536 407481 411152 417360 440520 486920 513940 517611 543308 584304 587360 616728 679135 690148 730380 770910 814962 822304 834720 862685 881040 950789 973840 1027880 1035222 1086616 1168608 1207759 1233456 1358270 1380296 1460760 1541820 1629924 1725370 1762080 1901578 1947680 2037405 2055760 2070444 2173232 2415518 2466912 2588055 2716540 2760592 2852367 2921520 3083640 3259848 3450740 3623277 3803156 4074810 4111520 4140888 4346464 4753945 4831036 5176110 5433080 5521184 5704734 5843040 6038795 6167280 6383869 6519696 6901480 7246554 7606312 8149620 8281776 9507890 9662072 10352220 10866160 11409468 12077590 12334560 12767738 13039392 13802960 14261835 14493108 15212624 16299240 16563552 18116385 19015780 19151607 19324144 20704440 21732320 22818936 24155180 25535476 27605920 28523670 28986216 30425248 31919345 32598480 36232770 38031560 38303214 38648288 41408880 44687083 45637872 48310360 51070952 57047340 57972432 63838690 65196960 72465540 76063120 76606428 82817760 89374166 91275744 95758035 96620720 102141904 114094680 115944864 127677380 134061249 144931080 152126240 153212856 178748332 191516070 193241440 204283808 223435415 228189360 255354760 268122498 289862160 306425712 357496664 383032140 446870830 456378720 510709520 536244996 579724320 612851424 670306245 714993328 766064280 893741660 1021419040 1072489992 1340612490 1429986656 1532128560 1787483320 2144979984 2681224980 3064257120 3574966640 4289959968 5362449960 7149933280 10724899920 21449799840
- Sum of all divisors σ(n): 81015717888
- Sum of proper divisors (its aliquot sum) s(n): 59565918048
- 21449799840 is an abundant number, because the sum of its proper divisors (59565918048) is greater than itself. Its abundance is 38116118208
Bases of 21449799840
- Binary: 100111111101000000111111000101000002
- Hexadecimal: 0x4FE81F8A0
- Base-36: 9UQNNHC
Squares and roots of 21449799840
- 21449799840 squared (214497998402) is 460093913176064025600
- 21449799840 cubed (214497998403) is 9868922345228912028144635904000
-
The
square root of 21449799840 is 146457.5018222009 -
The
cube root of 21449799840 is 2778.4830258697
Scales and comparisons
How big is 21449799840?- 21,449,799,840 seconds is equal to 682 years, 1 week, 6 days, 13 hours, 44 minutes.
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To count from 1 to 21,449,799,840 would take you about one thousand, three hundred sixty-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 21449799840 cubic inches would be around 231.5 feet tall.
Recreational maths with 21449799840
- 21449799840 backwards is 04899794412
- The number of decimal digits it has is: 11
- The sum of 21449799840's digits is 57
- More coming soon!
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