21399454440
21,399,454,440 is an even composite number composed of six prime numbers multiplied together.
21399454440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21399454440:
23 × 32 × 5 × 73 × 13 × 13331
(2 × 2 × 2 × 3 × 3 × 5 × 7 × 7 × 7 × 13 × 13331)See below for interesting mathematical facts about the number 21399454440 from the Numbermatics database.
Names of 21399454440
- Cardinal: 21399454440 can be written as Twenty-one billion, three hundred ninety-nine million, four hundred fifty-four thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.139945444 × 1010
Factors of 21399454440
Divisors of 21399454440
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 28 30 35 36 39 40 42 45 49 52 56 60 63 65 70 72 78 84 90 91 98 104 105 117 120 126 130 140 147 156 168 180 182 195 196 210 234 245 252 260 273 280 294 312 315 343 360 364 390 392 420 441 455 468 490 504 520 546 585 588 630 637 686 728 735 780 819 840 882 910 936 980 1029 1092 1170 1176 1260 1274 1365 1372 1470 1560 1638 1715 1764 1820 1911 1960 2058 2184 2205 2340 2520 2548 2730 2744 2940 3087 3185 3276 3430 3528 3640 3822 4095 4116 4410 4459 4680 5096 5145 5460 5733 5880 6174 6370 6552 6860 7644 8190 8232 8820 8918 9555 10290 10920 11466 12348 12740 13331 13377 13720 15288 15435 16380 17640 17836 19110 20580 22295 22932 24696 25480 26662 26754 28665 30870 32760 35672 38220 39993 40131 41160 44590 45864 53324 53508 57330 61740 66655 66885 76440 79986 80262 89180 93317 106648 107016 114660 119979 123480 133310 133770 159972 160524 173303 178360 186634 199965 200655 229320 239958 266620 267540 279951 319944 321048 346606 373268 399930 401310 466585 479916 519909 533240 535080 559902 599895 653219 693212 746536 799860 802620 839853 866515 933170 959832 1039818 1119804 1199790 1213121 1306438 1386424 1399755 1559727 1599720 1605240 1679706 1733030 1866340 1959657 2079636 2239608 2399580 2426242 2599545 2612876 2799510 3119454 3266095 3359412 3466060 3639363 3732680 3919314 4159272 4199265 4572533 4799160 4852484 5199090 5225752 5599020 5878971 6065605 6238908 6532190 6718824 6932120 7278726 7798635 7838628 8398530 8491847 9145066 9704968 9798285 10398180 10918089 11198040 11757942 12131210 12477816 13064380 13717599 14557452 15597270 15677256 16797060 16983694 18196815 18290132 19596570 20796360 21836178 22862665 23515884 24262420 25475541 26128760 27435198 29114904 29394855 31194540 33594120 33967388 36393630 36580264 39193140 41152797 42459235 43672356 45725330 47031768 48524840 50951082 54590445 54870396 58789710 59442929 62389080 67934776 68587995 72787260 76426623 78386280 82305594 84918470 87344712 91450660 101902164 109180890 109740792 117579420 118885858 127377705 137175990 145574520 152853246 164611188 169836940 178328787 182901320 203804328 205763985 218361780 235158840 237771716 254755410 274351980 297214645 305706492 329222376 339673880 356657574 382133115 411527970 436723560 475543432 509510820 534986361 548703960 594429290 611412984 713315148 764266230 823055940 891643935 1019021640 1069972722 1188858580 1426630296 1528532460 1646111880 1783287870 2139945444 2377717160 2674931805 3057064920 3566575740 4279890888 5349863610 7133151480 10699727220 21399454440
- Sum of all divisors σ(n): 87351264000
- Sum of proper divisors (its aliquot sum) s(n): 65951809560
- 21399454440 is an abundant number, because the sum of its proper divisors (65951809560) is greater than itself. Its abundance is 44552355120
Bases of 21399454440
- Binary: 100111110111000000111000010111010002
- Hexadecimal: 0x4FB81C2E8
- Base-36: 9TWOKQ0
Squares and roots of 21399454440
- 21399454440 squared (213994544402) is 457936650329635713600
- 21399454440 cubed (213994544403) is 9799594485135250434980088384000
-
The
square root of 21399454440 is 146285.5236857015 -
The
cube root of 21399454440 is 2776.3075055851
Scales and comparisons
How big is 21399454440?- 21,399,454,440 seconds is equal to 680 years, 22 weeks, 4 days, 20 hours, 54 minutes.
-
To count from 1 to 21,399,454,440 would take you about one thousand, three hundred sixty 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 21399454440 cubic inches would be around 231.4 feet tall.
Recreational maths with 21399454440
- 21399454440 backwards is 04445499312
- 21399454440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21399454440's digits is 45
- More coming soon!
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