21039615990
21,039,615,990 is an even composite number composed of eight prime numbers multiplied together.
21039615990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21039615990:
2 × 32 × 5 × 17 × 19 × 31 × 37 × 631
(2 × 3 × 3 × 5 × 17 × 19 × 31 × 37 × 631)See below for interesting mathematical facts about the number 21039615990 from the Numbermatics database.
Names of 21039615990
- Cardinal: 21039615990 can be written as Twenty-one billion, thirty-nine million, six hundred fifteen thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.103961599 × 1010
Factors of 21039615990
Divisors of 21039615990
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 19 30 31 34 37 38 45 51 57 62 74 85 90 93 95 102 111 114 153 155 170 171 185 186 190 222 255 279 285 306 310 323 333 342 370 465 510 527 555 558 570 589 629 631 646 666 703 765 855 930 969 1054 1110 1147 1178 1258 1262 1395 1406 1530 1581 1615 1665 1710 1767 1887 1893 1938 2109 2294 2635 2790 2907 2945 3145 3155 3162 3230 3330 3441 3515 3534 3774 3786 4218 4743 4845 5270 5301 5661 5679 5735 5814 5890 6290 6310 6327 6882 7030 7905 8835 9435 9465 9486 9690 10013 10323 10545 10602 10727 11322 11358 11470 11951 11989 12654 14535 15810 17205 17670 18870 18930 19499 19561 20026 20646 21090 21454 21793 23347 23715 23902 23978 26505 28305 28395 29070 30039 31635 32181 34410 35853 35967 38998 39122 43586 46694 47430 50065 51615 53010 53635 56610 56790 58497 58683 59755 59945 60078 63270 64362 65379 70041 71706 71934 90117 96543 97495 97805 100130 103230 107270 107559 107901 108965 116735 116994 117366 119510 119890 130758 140082 150195 160905 175491 176049 179265 179835 180234 193086 194990 195610 196137 203813 210123 215118 215802 217930 233470 292485 293415 300390 321810 326895 332537 350205 350982 352098 358530 359670 370481 371659 392274 396899 407626 420246 443593 450585 482715 537795 539505 584970 586830 611439 653790 665074 700410 723757 740962 743318 793798 877455 880245 887186 901170 965430 980685 997611 1019065 1050615 1075590 1079010 1111443 1114977 1190697 1222878 1330779 1447514 1662685 1754910 1760490 1834317 1852405 1858295 1961370 1984495 1995222 2038130 2101230 2171271 2217965 2222886 2229954 2381394 2661558 2992833 3057195 3325370 3334329 3344931 3572091 3618785 3668634 3704810 3716590 3968990 3992337 4342542 4435930 4988055 5557215 5574885 5953485 5985666 6114390 6318203 6513813 6653895 6668658 6689862 7144182 7237570 7541081 7984674 9171585 9976110 10856355 11114430 11149770 11906970 12303869 12636406 13027626 13307790 13751383 14964165 15082162 16671645 16724655 17860455 18343170 18954609 19961685 21712710 22623243 24607738 27502766 29928330 31591015 32569065 33343290 33449310 35720910 36911607 37705405 37909218 39923370 41254149 45246486 56863827 61519345 63182030 65138130 67869729 68756915 73823214 75410810 82508298 94773045 110734821 113116215 113727654 123038690 123762447 135739458 137513830 184558035 189546090 206270745 221469642 226232430 233773511 247524894 284319135 339348645 369116070 412541490 467547022 553674105 568638270 618812235 678697290 701320533 1107348210 1168867555 1237624470 1402641066 2103961599 2337735110 3506602665 4207923198 7013205330 10519807995 21039615990
- Sum of all divisors σ(n): 64739450880
- Sum of proper divisors (its aliquot sum) s(n): 43699834890
- 21039615990 is an abundant number, because the sum of its proper divisors (43699834890) is greater than itself. Its abundance is 22660218900
Bases of 21039615990
- Binary: 100111001100000111100001111111101102
- Hexadecimal: 0x4E60F0FF6
- Base-36: 9NYFZLI
Squares and roots of 21039615990
- 21039615990 squared (210396159902) is 442665441006663680100
- 21039615990 cubed (210396159903) is 9313510890824202860384204799000
-
The
square root of 21039615990 is 145050.3912094001 -
The
cube root of 21039615990 is 2760.6579677381
Scales and comparisons
How big is 21039615990?- 21,039,615,990 seconds is equal to 668 years, 51 weeks, 5 days, 1 hour, 46 minutes, 30 seconds.
-
To count from 1 to 21,039,615,990 would take you about one thousand, three hundred thirty-seven 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 21039615990 cubic inches would be around 230.1 feet tall.
Recreational maths with 21039615990
- 21039615990 backwards is 09951693012
- 21039615990 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21039615990's digits is 45
- More coming soon!
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The information we have on file for 21039615990 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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