21264971490
21,264,971,490 is an even composite number composed of seven prime numbers multiplied together.
21264971490 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21264971490:
2 × 32 × 5 × 72 × 61 × 137 × 577
(2 × 3 × 3 × 5 × 7 × 7 × 61 × 137 × 577)See below for interesting mathematical facts about the number 21264971490 from the Numbermatics database.
Names of 21264971490
- Cardinal: 21264971490 can be written as Twenty-one billion, two hundred sixty-four million, nine hundred seventy-one thousand, four hundred ninety.
Scientific notation
- Scientific notation: 2.126497149 × 1010
Factors of 21264971490
Divisors of 21264971490
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 61 63 70 90 98 105 122 126 137 147 183 210 245 274 294 305 315 366 411 427 441 490 549 577 610 630 685 735 822 854 882 915 959 1098 1154 1233 1281 1370 1470 1731 1830 1918 2055 2135 2205 2466 2562 2745 2877 2885 2989 3462 3843 4039 4110 4270 4410 4795 5193 5490 5754 5770 5978 6165 6405 6713 7686 8078 8357 8631 8655 8967 9590 10386 12117 12330 12810 13426 14385 14945 16714 17262 17310 17934 19215 20139 20195 24234 25071 25965 26901 28273 28770 29890 33565 35197 36351 38430 40278 40390 41785 43155 44835 50142 51930 53802 56546 58499 60417 60585 67130 70394 72702 75213 79049 83570 84819 86310 89670 100695 105591 116998 120834 121170 125355 134505 141365 150426 158098 169638 175497 175985 181755 201390 211182 237147 246379 250710 254457 269010 282730 292495 302085 316773 350994 351970 363510 376065 395245 409493 424095 474294 492758 508914 526491 527955 553343 584990 604170 633546 711441 739137 752130 790490 818986 848190 877485 1052982 1055910 1106686 1185735 1228479 1231895 1272285 1422882 1478274 1583865 1660029 1724653 1754970 2047465 2217411 2371470 2456958 2463790 2544570 2632455 2766715 3167730 3320058 3449306 3557205 3685437 3695685 3873401 4094930 4434822 4821989 4980087 5173959 5264910 5533430 6142395 7114410 7370874 7391370 7746802 8300145 8623265 9643978 9960174 10347918 11087055 11620203 12284790 14465967 15521877 16600290 17246530 18427185 19367005 22174110 23240406 24109945 24900435 25869795 28931934 31043754 33753923 34860609 36854370 38734010 43397901 48219890 49800870 51739590 58101015 67507846 69721218 72329835 77609385 86795802 101261769 116202030 144659670 155218770 168769615 174303045 202523538 216989505 236277461 303785307 337539230 348606090 433979010 472554922 506308845 607570614 708832383 1012617690 1181387305 1417664766 1518926535 2126497149 2362774610 3037853070 3544161915 4252994298 7088323830 10632485745 21264971490
- Sum of all divisors σ(n): 65961318384
- Sum of proper divisors (its aliquot sum) s(n): 44696346894
- 21264971490 is an abundant number, because the sum of its proper divisors (44696346894) is greater than itself. Its abundance is 23431375404
Bases of 21264971490
- Binary: 100111100110111110110110110111000102
- Hexadecimal: 0x4F37DB6E2
- Base-36: 9ROM50I
Squares and roots of 21264971490
- 21264971490 squared (212649714902) is 452199012470512820100
- 21264971490 cubed (212649714903) is 9615999107991609585105998949000
-
The
square root of 21264971490 is 145825.1401165107 -
The
cube root of 21264971490 is 2770.4794614621
Scales and comparisons
How big is 21264971490?- 21,264,971,490 seconds is equal to 676 years, 8 weeks, 2 days, 8 hours, 31 minutes, 30 seconds.
-
To count from 1 to 21,264,971,490 would take you about one thousand, three hundred fifty-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 21264971490 cubic inches would be around 230.9 feet tall.
Recreational maths with 21264971490
- 21264971490 backwards is 09417946212
- 21264971490 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21264971490's digits is 45
- More coming soon!
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