21389073888
21,389,073,888 is an even composite number composed of six prime numbers multiplied together.
21389073888 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 21389073888:
25 × 3 × 73 × 13 × 29 × 1723
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 13 × 29 × 1723)See below for interesting mathematical facts about the number 21389073888 from the Numbermatics database.
Names of 21389073888
- Cardinal: 21389073888 can be written as Twenty-one billion, three hundred eighty-nine million, seventy-three thousand, eight hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1389073888 × 1010
Factors of 21389073888
Divisors of 21389073888
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 29 32 39 42 48 49 52 56 58 78 84 87 91 96 98 104 112 116 147 156 168 174 182 196 203 208 224 232 273 294 312 336 343 348 364 377 392 406 416 464 546 588 609 624 637 672 686 696 728 754 784 812 928 1029 1092 1131 1176 1218 1248 1274 1372 1392 1421 1456 1508 1568 1624 1723 1911 2058 2184 2262 2352 2436 2548 2639 2744 2784 2842 2912 3016 3248 3446 3822 4116 4263 4368 4459 4524 4704 4872 5096 5169 5278 5488 5684 6032 6496 6892 7644 7917 8232 8526 8736 8918 9048 9744 9947 10192 10338 10556 10976 11368 12061 12064 13377 13784 15288 15834 16464 17052 17836 18096 18473 19488 19894 20384 20676 21112 22399 22736 24122 26754 27568 29841 30576 31668 32928 34104 35672 36183 36192 36946 39788 41352 42224 44798 45472 48244 49967 53508 55136 55419 59682 61152 63336 67197 68208 71344 72366 73892 79576 82704 84427 84448 89596 96488 99934 107016 110838 119364 126672 129311 134394 136416 142688 144732 147784 149901 156793 159152 165408 168854 179192 192976 199868 214032 221676 238728 253281 253344 258622 268788 289464 295568 299802 313586 318304 337708 349769 358384 385952 387933 399736 428064 443352 470379 477456 506562 517244 537576 578928 590989 591136 599604 627172 649571 675416 699538 716768 775866 799472 886704 940758 954912 1013124 1034488 1049307 1075152 1097551 1157856 1181978 1199208 1254344 1299142 1350832 1399076 1551732 1598944 1772967 1773408 1881516 1948713 2026248 2068976 2098614 2150304 2195102 2363956 2398416 2448383 2508688 2598284 2701664 2798152 3103464 3292653 3545934 3763032 3897426 4052496 4137952 4197228 4390204 4546997 4727912 4796832 4896766 5017376 5196568 5596304 6206928 6585306 7091868 7345149 7526064 7682857 7794852 8104992 8394456 8780408 9093994 9455824 9793532 10393136 11192608 12413856 13170612 13640991 14183736 14690298 15052128 15365714 15589704 16788912 17138681 17560816 18187988 18911648 19587064 20786272 23048571 26341224 27281982 28367472 29380596 30731428 31179408 31828979 33577824 34277362 35121632 36375976 39174128 46097142 51416043 52682448 54563964 56734944 58761192 61462856 62358816 63657958 68554724 72751952 78348256 92194284 95486937 102832086 105364896 109127928 117522384 122925712 127315916 137109448 145503904 184388568 190973874 205664172 218255856 222802853 235044768 245851424 254631832 274218896 368777136 381947748 411328344 436511712 445605706 509263664 548437792 668408559 737554272 763895496 822656688 891211412 1018527328 1336817118 1527790992 1645313376 1782422824 2673634236 3055581984 3564845648 5347268472 7129691296 10694536944 21389073888
- Sum of all divisors σ(n): 72987264000
- Sum of proper divisors (its aliquot sum) s(n): 51598190112
- 21389073888 is an abundant number, because the sum of its proper divisors (51598190112) is greater than itself. Its abundance is 30209116224
Bases of 21389073888
- Binary: 100111110101110001101011101111000002
- Hexadecimal: 0x4FAE35DE0
- Base-36: 9TQI31C
Squares and roots of 21389073888
- 21389073888 squared (213890738882) is 457492481786323436544
- 21389073888 cubed (213890738883) is 9785340496132166212105695363072
-
The
square root of 21389073888 is 146250.0389333281 -
The
cube root of 21389073888 is 2775.8585180381
Scales and comparisons
How big is 21389073888?- 21,389,073,888 seconds is equal to 680 years, 5 weeks, 3 days, 17 hours, 24 minutes, 48 seconds.
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To count from 1 to 21,389,073,888 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 21389073888 cubic inches would be around 231.3 feet tall.
Recreational maths with 21389073888
- 21389073888 backwards is 88837098312
- The number of decimal digits it has is: 11
- The sum of 21389073888's digits is 57
- More coming soon!
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