21108989440
21,108,989,440 is an even composite number composed of six prime numbers multiplied together.
21108989440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21108989440:
29 × 5 × 7 × 11 × 173 × 619
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 173 × 619)See below for interesting mathematical facts about the number 21108989440 from the Numbermatics database.
Names of 21108989440
- Cardinal: 21108989440 can be written as Twenty-one billion, one hundred eight million, nine hundred eighty-nine thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.110898944 × 1010
Factors of 21108989440
Divisors of 21108989440
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 64 70 77 80 88 110 112 128 140 154 160 173 176 220 224 256 280 308 320 346 352 385 440 448 512 560 616 619 640 692 704 770 865 880 896 1120 1211 1232 1238 1280 1384 1408 1540 1730 1760 1792 1903 2240 2422 2464 2476 2560 2768 2816 3080 3095 3460 3520 3584 3806 4333 4480 4844 4928 4952 5536 5632 6055 6160 6190 6809 6920 7040 7612 8666 8960 9515 9688 9856 9904 11072 12110 12320 12380 13321 13618 13840 14080 15224 17332 17920 19030 19376 19712 19808 21665 22144 24220 24640 24760 26642 27236 27680 28160 30448 34045 34664 38060 38752 39424 39616 43330 44288 47663 48440 49280 49520 53284 54472 55360 60896 66605 68090 69328 76120 77504 79232 86660 88576 95326 96880 98560 99040 106568 107087 108944 110720 121792 133210 136180 138656 152240 155008 158464 173320 190652 193760 197120 198080 213136 214174 217888 221440 238315 243584 266420 272360 277312 304480 310016 316928 346640 381304 387520 396160 426272 428348 435776 442880 476630 487168 532840 535435 544720 554624 608960 620032 693280 749609 762608 775040 792320 852544 856696 871552 953260 974336 1065680 1070870 1089440 1109248 1177957 1217920 1386560 1499218 1525216 1550080 1584640 1705088 1713392 1743104 1906520 2131360 2141740 2178880 2218496 2355914 2435840 2773120 2998436 3050432 3100160 3410176 3426784 3486208 3748045 3813040 4262720 4283480 4357760 4711828 4871680 5546240 5889785 5996872 6100864 6820352 6853568 7496090 7626080 8245699 8525440 8566960 8715520 9423656 11092480 11779570 11993744 12201728 13707136 14992180 15252160 16491398 17050880 17133920 17431040 18847312 23559140 23987488 24403456 27414272 29984360 30504320 32982796 34101760 34267840 37694624 41228495 47118280 47974976 54828544 59968720 61008640 65965592 68535680 75389248 82456990 94236560 95949952 119937440 122017280 131931184 137071360 150778496 164913980 188473120 191899904 239874880 263862368 274142720 301556992 329827960 376946240 383799808 479749760 527724736 603113984 659655920 753892480 959499520 1055449472 1319311840 1507784960 1918999040 2110898944 2638623680 3015569920 4221797888 5277247360 10554494720 21108989440
- Sum of all divisors σ(n): 63568074240
- Sum of proper divisors (its aliquot sum) s(n): 42459084800
- 21108989440 is an abundant number, because the sum of its proper divisors (42459084800) is greater than itself. Its abundance is 21350095360
Bases of 21108989440
- Binary: 100111010100011000110011110000000002
- Hexadecimal: 0x4EA319E00
- Base-36: 9P3QWHS
Squares and roots of 21108989440
- 21108989440 squared (211089894402) is 445589435178031513600
- 21108989440 cubed (211089894403) is 9405942681748631740569616384000
-
The
square root of 21108989440 is 145289.3300968795 -
The
cube root of 21108989440 is 2763.6888573089
Scales and comparisons
How big is 21108989440?- 21,108,989,440 seconds is equal to 671 years, 10 weeks, 3 days, 10 minutes, 40 seconds.
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To count from 1 to 21,108,989,440 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 21108989440 cubic inches would be around 230.3 feet tall.
Recreational maths with 21108989440
- 21108989440 backwards is 04498980112
- The number of decimal digits it has is: 11
- The sum of 21108989440's digits is 46
- More coming soon!
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