21388177440
21,388,177,440 is an even composite number composed of five prime numbers multiplied together.
21388177440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21388177440:
25 × 33 × 5 × 7 × 294
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 29 × 29 × 29 × 29)See below for interesting mathematical facts about the number 21388177440 from the Numbermatics database.
Names of 21388177440
- Cardinal: 21388177440 can be written as Twenty-one billion, three hundred eighty-eight million, one hundred seventy-seven thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.138817744 × 1010
Factors of 21388177440
Divisors of 21388177440
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 29 30 32 35 36 40 42 45 48 54 56 58 60 63 70 72 80 84 87 90 96 105 108 112 116 120 126 135 140 144 145 160 168 174 180 189 203 210 216 224 232 240 252 261 270 280 288 290 315 336 348 360 378 406 420 432 435 464 480 504 522 540 560 580 609 630 672 696 720 756 783 812 840 841 864 870 928 945 1008 1015 1044 1080 1120 1160 1218 1260 1305 1392 1440 1512 1566 1624 1680 1682 1740 1827 1890 2016 2030 2088 2160 2320 2436 2520 2523 2610 2784 3024 3045 3132 3248 3360 3364 3480 3654 3780 3915 4060 4176 4205 4320 4640 4872 5040 5046 5220 5481 5887 6048 6090 6264 6496 6728 6960 7308 7560 7569 7830 8120 8352 8410 9135 9744 10080 10092 10440 10962 11774 12180 12528 12615 13456 13920 14616 15120 15138 15660 16240 16820 17661 18270 19488 20184 20880 21924 22707 23548 24360 24389 25056 25230 26912 27405 29232 29435 30240 30276 31320 32480 33640 35322 36540 37845 40368 41760 43848 45414 47096 48720 48778 50460 52983 54810 58464 58870 60552 62640 67280 70644 73080 73167 75690 80736 87696 88305 90828 94192 97440 97556 100920 105966 109620 113535 117740 121104 121945 125280 134560 141288 146160 146334 151380 158949 170723 175392 176610 181656 188384 195112 201840 211932 219240 219501 227070 235480 242208 243890 264915 282576 292320 292668 302760 317898 341446 353220 363312 365835 390224 403680 423864 438480 439002 454140 470960 487780 512169 529830 565152 585336 605520 635796 658503 682892 706440 707281 726624 731670 780448 794745 847728 853615 876960 878004 908280 941920 975560 1024338 1059660 1097505 1170672 1211040 1271592 1317006 1365784 1412880 1414562 1463340 1536507 1589490 1695456 1707230 1756008 1816560 1951120 2048676 2119320 2121843 2195010 2341344 2543184 2560845 2634012 2731568 2825760 2829124 2926680 3073014 3178980 3292515 3414460 3512016 3536405 3633120 3902240 4097352 4238640 4243686 4390020 4609521 4950967 5086368 5121690 5268024 5463136 5658248 5853360 6146028 6357960 6365529 6585030 6828920 7024032 7072810 7682535 8194704 8477280 8487372 8780040 9219042 9901934 10243380 10536048 10609215 11316496 11706720 12292056 12715920 12731058 13170060 13657840 14145620 14852901 15365070 16389408 16974744 17560080 18438084 19096587 19803868 20486760 21072096 21218430 22632992 23047605 24584112 24754835 25431840 25462116 26340120 27315680 28291240 29705802 30730140 31827645 33949488 35120160 36876168 38193174 39607736 40973520 42436860 44558703 46095210 49168224 49509670 50924232 52680240 56582480 59411604 61460280 63655290 67898976 73752336 74264505 76386348 79215472 81947040 84873720 89117406 92190420 95482935 99019340 101848464 105360480 113164960 118823208 122920560 127310580 133676109 147504672 148529010 152772696 158430944 169747440 178234812 184380840 190965870 198038680 203696928 222793515 237646416 245841120 254621160 267352218 297058020 305545392 339494880 356469624 368761680 381931740 396077360 445587030 475292832 509242320 534704436 594116040 611090784 668380545 712939248 737523360 763863480 792154720 891174060 1018484640 1069408872 1188232080 1336761090 1425878496 1527726960 1782348120 2138817744 2376464160 2673522180 3055453920 3564696240 4277635488 5347044360 7129392480 10694088720 21388177440
- Sum of all divisors σ(n): 88608159360
- Sum of proper divisors (its aliquot sum) s(n): 67219981920
- 21388177440 is an abundant number, because the sum of its proper divisors (67219981920) is greater than itself. Its abundance is 45831804480
Bases of 21388177440
- Binary: 100111110101101010110110000001000002
- Hexadecimal: 0x4FAD5B020
- Base-36: 9TPYVC0
Squares and roots of 21388177440
- 21388177440 squared (213881774402) is 457454134204924953600
- 21388177440 cubed (213881774403) is 9784110193036508229480566784000
-
The
square root of 21388177440 is 146246.9741225439 -
The
cube root of 21388177440 is 2775.8197373721
Scales and comparisons
How big is 21388177440?- 21,388,177,440 seconds is equal to 680 years, 4 weeks, 8 hours, 24 minutes.
-
To count from 1 to 21,388,177,440 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 21388177440 cubic inches would be around 231.3 feet tall.
Recreational maths with 21388177440
- 21388177440 backwards is 04477188312
- 21388177440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21388177440's digits is 45
- More coming soon!
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The information we have on file for 21388177440 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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