21421693440
21,421,693,440 is an even composite number composed of six prime numbers multiplied together.
21421693440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21421693440:
29 × 32 × 5 × 7 × 317 × 419
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 317 × 419)See below for interesting mathematical facts about the number 21421693440 from the Numbermatics database.
Names of 21421693440
- Cardinal: 21421693440 can be written as Twenty-one billion, four hundred twenty-one million, six hundred ninety-three thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.142169344 × 1010
Factors of 21421693440
Divisors of 21421693440
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 80 84 90 96 105 112 120 126 128 140 144 160 168 180 192 210 224 240 252 256 280 288 315 317 320 336 360 384 419 420 448 480 504 512 560 576 630 634 640 672 720 768 838 840 896 951 960 1008 1120 1152 1257 1260 1268 1280 1344 1440 1536 1585 1676 1680 1792 1902 1920 2016 2095 2219 2240 2304 2514 2520 2536 2560 2688 2853 2880 2933 3170 3352 3360 3584 3771 3804 3840 4032 4190 4438 4480 4608 4755 5028 5040 5072 5376 5706 5760 5866 6285 6340 6657 6704 6720 7542 7608 7680 8064 8380 8799 8876 8960 9510 10056 10080 10144 10752 11095 11412 11520 11732 12570 12680 13314 13408 13440 14265 14665 15084 15216 16128 16760 17598 17752 17920 18855 19020 19971 20112 20160 20288 22190 22824 23040 23464 25140 25360 26397 26628 26816 26880 28530 29330 30168 30432 32256 33285 33520 35196 35504 37710 38040 39942 40224 40320 40576 43995 44380 45648 46928 50280 50720 52794 53256 53632 53760 57060 58660 60336 60864 66570 67040 70392 71008 75420 76080 79884 80448 80640 81152 87990 88760 91296 93856 99855 100560 101440 105588 106512 107264 114120 117320 120672 121728 131985 132823 133140 134080 140784 142016 150840 152160 159768 160896 161280 162304 175980 177520 182592 187712 199710 201120 202880 211176 213024 214528 228240 234640 241344 243456 263970 265646 266280 268160 281568 284032 301680 304320 319536 321792 351960 355040 365184 375424 398469 399420 402240 405760 422352 426048 456480 469280 482688 486912 527940 531292 532560 536320 563136 568064 603360 608640 639072 643584 664115 703920 710080 730368 750848 796938 798840 804480 811520 844704 852096 912960 929761 938560 965376 1055880 1062584 1065120 1072640 1126272 1136128 1195407 1206720 1217280 1278144 1328230 1407840 1420160 1460736 1501696 1593876 1597680 1608960 1689408 1704192 1825920 1859522 1877120 1930752 1992345 2111760 2125168 2130240 2252544 2390814 2413440 2434560 2556288 2656460 2789283 2815680 2840320 3187752 3195360 3217920 3378816 3408384 3651840 3719044 3754240 3984690 4223520 4250336 4260480 4505088 4648805 4781628 4826880 5112576 5312920 5578566 5631360 5680640 5977035 6375504 6390720 6757632 7303680 7438088 7508480 7969380 8367849 8447040 8500672 8520960 9297610 9563256 9653760 10225152 10625840 11157132 11262720 11954070 12751008 12781440 13515264 13946415 14876176 15938760 16735698 16894080 17001344 17041920 18595220 19126512 21251680 22314264 22525440 23908140 25502016 25562880 27892830 29752352 31877520 33471396 33788160 34002688 37190440 38253024 41839245 42503360 44628528 47816280 51004032 51125760 55785660 59504704 63755040 66942792 67576320 68005376 74380880 76506048 83678490 85006720 89257056 95632560 102008064 111571320 119009408 127510080 133885584 148761760 153012096 167356980 170013440 178514112 191265120 204016128 223142640 238018816 255020160 267771168 297523520 306024192 334713960 340026880 357028224 382530240 446285280 476037632 510040320 535542336 595047040 612048384 669427920 714056448 765060480 892570560 1020080640 1071084672 1190094080 1338855840 1428112896 1530120960 1785141120 2142169344 2380188160 2677711680 3060241920 3570282240 4284338688 5355423360 7140564480 10710846720 21421693440
- Sum of all divisors σ(n): 85258293120
- Sum of proper divisors (its aliquot sum) s(n): 63836599680
- 21421693440 is an abundant number, because the sum of its proper divisors (63836599680) is greater than itself. Its abundance is 42414906240
Bases of 21421693440
- Binary: 100111111001101010100011010000000002
- Hexadecimal: 0x4FCD51A00
- Base-36: 9U9X8G0
Squares and roots of 21421693440
- 21421693440 squared (214216934402) is 458888949837339033600
- 21421693440 cubed (214216934403) is 9830178406419014643125059584000
-
The
square root of 21421693440 is 146361.5162534197 -
The
cube root of 21421693440 is 2777.2689152467
Scales and comparisons
How big is 21421693440?- 21,421,693,440 seconds is equal to 681 years, 7 weeks, 3 days, 6 hours, 24 minutes.
-
To count from 1 to 21,421,693,440 would take you about one thousand, three hundred sixty-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 21421693440 cubic inches would be around 231.4 feet tall.
Recreational maths with 21421693440
- 21421693440 backwards is 04439612412
- 21421693440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21421693440's digits is 36
- More coming soon!
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