21107841720
21,107,841,720 is an even composite number composed of seven prime numbers multiplied together.
21107841720 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 21107841720:
23 × 3 × 5 × 72 × 31 × 43 × 2693
(2 × 2 × 2 × 3 × 5 × 7 × 7 × 31 × 43 × 2693)See below for interesting mathematical facts about the number 21107841720 from the Numbermatics database.
Names of 21107841720
- Cardinal: 21107841720 can be written as Twenty-one billion, one hundred seven million, eight hundred forty-one thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.110784172 × 1010
Factors of 21107841720
Divisors of 21107841720
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 31 35 40 42 43 49 56 60 62 70 84 86 93 98 105 120 124 129 140 147 155 168 172 186 196 210 215 217 245 248 258 280 294 301 310 344 372 392 420 430 434 465 490 516 588 602 620 645 651 735 744 840 860 868 903 930 980 1032 1085 1176 1204 1240 1290 1302 1333 1470 1505 1519 1720 1736 1806 1860 1960 2107 2170 2408 2580 2604 2666 2693 2940 3010 3038 3255 3612 3720 3999 4214 4340 4515 4557 5160 5208 5332 5386 5880 6020 6076 6321 6510 6665 7224 7595 7998 8079 8428 8680 9030 9114 9331 10535 10664 10772 12040 12152 12642 13020 13330 13465 15190 15996 16158 16856 18060 18228 18662 18851 19995 21070 21544 22785 25284 26040 26660 26930 27993 30380 31605 31992 32316 36120 36456 37324 37702 39990 40395 42140 45570 46655 50568 53320 53860 55986 56553 60760 63210 64632 65317 74648 75404 79980 80790 83483 84280 91140 93310 94255 107720 111972 113106 115799 126420 130634 131957 139965 150808 159960 161580 166966 182280 186620 188510 195951 223944 226212 231598 250449 252840 261268 263914 279930 282765 323160 326585 333932 347397 373240 377020 391902 395871 417415 452424 463196 500898 522536 527828 559860 565530 578995 584381 653170 659785 667864 694794 754040 783804 791742 810593 834830 926392 979755 1001796 1055656 1119720 1131060 1157990 1168762 1252245 1306340 1319570 1389588 1567608 1583484 1621186 1669660 1736985 1753143 1959510 1979355 2003592 2262120 2315980 2337524 2431779 2504490 2612680 2639140 2779176 2921905 3166968 3242372 3339320 3473970 3506286 3589769 3919020 3958710 4052965 4090667 4631960 4675048 4863558 5008980 5278280 5674151 5843810 6484744 6947940 7012572 7179538 7838040 7917420 8105930 8181334 8765715 9727116 10017960 10769307 11348302 11687620 12158895 12272001 13895880 14025144 14359076 15834840 16211860 16362668 17022453 17531430 17948845 19454232 20453335 21538614 22696604 23375240 24317790 24544002 25128383 28370755 28718152 32423720 32725336 34044906 35062860 35897690 40906670 43077228 45393208 48635580 49088004 50256766 53846535 56741510 61360005 68089812 70125720 71795380 75385149 81813340 85112265 86154456 97271160 98176008 100513532 107693070 113483020 122720010 125641915 136179624 143590760 150770298 163626680 170224530 175898681 201027064 215386140 226966040 245440020 251283830 301540596 340449060 351797362 376925745 430772280 490880040 502567660 527696043 603081192 680898120 703594724 753851490 879493405 1005135320 1055392086 1407189448 1507702980 1758986810 2110784172 2638480215 3015405960 3517973620 4221568344 5276960430 7035947240 10553920860 21107841720
- Sum of all divisors σ(n): 77835479040
- Sum of proper divisors (its aliquot sum) s(n): 56727637320
- 21107841720 is an abundant number, because the sum of its proper divisors (56727637320) is greater than itself. Its abundance is 35619795600
Bases of 21107841720
- Binary: 100111010100010000000011010101110002
- Hexadecimal: 0x4EA201AB8
- Base-36: 9P32AWO
Squares and roots of 21107841720
- 21107841720 squared (211078417202) is 445540982076572558400
- 21107841720 cubed (211078417203) is 9404408529445650482802656448000
-
The
square root of 21107841720 is 145285.3802693167 -
The
cube root of 21107841720 is 2763.6387680887
Scales and comparisons
How big is 21107841720?- 21,107,841,720 seconds is equal to 671 years, 8 weeks, 3 days, 17 hours, 22 minutes.
-
To count from 1 to 21,107,841,720 would take you about one thousand, three hundred forty-two 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 21107841720 cubic inches would be around 230.3 feet tall.
Recreational maths with 21107841720
- 21107841720 backwards is 02714870112
- The number of decimal digits it has is: 11
- The sum of 21107841720's digits is 33
- More coming soon!
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