21445429824

Names of 21445429824

• Cardinal: 21445429824 can be written as Twenty-one billion, four hundred forty-five million, four hundred twenty-nine thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1445429824 × 10¹⁰

Factors of 21445429824

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 670

Divisors of 21445429824

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 17 18 21 24 26 28 32 34 36 39 41 42 48 51 52 56 63 64 68 72 78 82 84 91 96 102 104 112 117 119 123 126 136 144 153 156 164 168 182 192 204 208 221 224 234 238 246 252 272 273 287 288 306 312 328 336 357 364 369 408 416 442 448 468 476 492 504 533 544 546 574 576 587 612 624 656 663 672 697 714 728 738 816 819 832 861 884 936 952 984 1008 1066 1071 1088 1092 1148 1174 1224 1248 1312 1326 1344 1394 1428 1456 1476 1547 1599 1632 1638 1722 1761 1768 1872 1904 1968 1989 2016 2091 2132 2142 2184 2296 2348 2448 2496 2583 2624 2652 2788 2856 2912 2952 3094 3198 3264 3276 3444 3522 3536 3731 3744 3808 3936 3978 4032 4109 4182 4264 4284 4368 4592 4641 4696 4797 4879 4896 5166 5283 5304 5576 5712 5824 5904 6188 6273 6396 6552 6888 7044 7072 7462 7488 7616 7631 7872 7956 8218 8364 8528 8568 8736 9061 9184 9282 9392 9594 9758 9792 9979 10332 10566 10608 11152 11193 11424 11808 12327 12376 12546 12792 13104 13776 13923 14088 14144 14637 14924 15262 15912 16436 16728 17056 17136 17472 18122 18368 18564 18784 19188 19516 19958 20664 21132 21216 22304 22386 22848 22893 23616 24067 24654 24752 25092 25584 26208 27183 27552 27846 28176 29274 29848 29937 30524 31824 32872 33456 33579 34112 34272 36244 36981 37128 37568 38376 39032 39916 41328 42264 42432 43911 44608 44772 45786 48134 49308 49504 50184 51168 52416 53417 54366 55104 55692 56352 58548 59696 59874 61048 63427 63648 65744 66912 67158 68544 68679 69853 72201 72488 73962 74256 76752 78064 79832 81549 82656 84528 87822 89544 89811 91572 96268 98616 99008 100368 102336 106834 108732 111384 112704 117096 119392 119748 122096 126854 127296 129727 131488 133824 134316 137358 139706 144402 144976 147924 148512 153504 156128 159664 160251 163098 165312 168469 169056 175644 179088 179622 183144 190281 192536 197232 200736 209559 213668 216603 217464 222768 234192 238784 239496 244192 253708 259454 262976 268632 274716 279412 288804 289952 295848 297024 307008 312256 312871 319328 320502 326196 336938 338112 351288 358176 359244 366288 380562 385072 389181 394464 401472 409139 419118 427336 433206 434928 445536 468384 478992 480753 488384 505407 507416 518908 537264 549432 558824 570843 577608 579904 591696 625742 628677 638656 641004 652392 673876 702576 716352 718488 732576 761124 770144 778362 788928 818278 838236 854672 866412 869856 891072 908089 936768 938613 957984 961506 1010814 1014832 1037816 1074528 1098864 1117648 1141686 1155216 1167543 1183392 1227417 1251484 1257354 1282008 1304784 1347752 1405152 1436976 1465152 1516221 1522248 1540288 1556724 1636556 1676472 1709344 1732824 1739712 1816178 1877226 1915968 1923012 2021628 2029664 2075632 2149056 2190097 2197728 2235296 2283372 2310432 2335086 2366784 2454834 2502968 2514708 2564016 2609568 2695504 2724267 2810304 2815839 2863973 2873952 3032442 3044496 3113448 3273112 3352944 3418688 3465648 3632356 3682251 3754452 3846024 4043256 4059328 4151264 4380194 4395456 4470592 4566744 4620864 4670172 4909668 5005936 5029416 5128032 5219136 5318807 5391008 5448534 5631678 5727946 5747904 6064884 6088992 6226896 6546224 6570291 6705888 6931296 7264712 7364502 7508904 7692048 8086512 8172801 8302528 8591919 8760388 9133488 9340344 9819336 10011872 10058832 10256064 10637614 10782016 10897068 11263356 11455892 12129768 12177984 12453792 13092448 13140582 13411776 13862592 14529424 14729004 15017808 15384096 15956421 16173024 16345602 17183838 17520776 18266976 18680688 19638672 19710873 20023744 20117664 21275228 21794136 22526712 22911784 24259536 24907584 25775757 26184896 26281164 29058848 29458008 30035616 30768192 31912842 32346048 32691204 34367676 35041552 36533952 37231649 37361376 39277344 39421746 40235328 42550456 43588272 45053424 45823568 47869263 48519072 51551514 52562328 58117696 58916016 60071232 63825684 65382408 68735352 70083104 74463298 74722752 78554688 78843492 85100912 87176544 90106848 91647136 95738526 97038144 103103028 105124656 111694947 117832032 127651368 130764816 137470704 140166208 148926596 157686984 170201824 174353088 180213696 183294272 191477052 206206056 210249312 223389894 235664064 255302736 261529632 274941408 297853192 315373968 335084841 340403648 382954104 412412112 420498624 446779788 510605472 523059264 549882816 595706384 630747936 670169682 765908208 824824224 893559576 1021210944 1191412768 1261495872 1340339364 1531816416 1649648448 1787119152 2382825536 2680678728 3063632832 3574238304 5361357456 7148476608 10722714912 21445429824
• Sum of all divisors σ(n): 82198561536
• Sum of proper divisors (its aliquot sum) s(n): 60753131712
• 21445429824 is an abundant number, because the sum of its proper divisors (60753131712) is greater than itself. Its abundance is 39307701888

Bases of 21445429824

• Binary: 10011111110001111110100101001000000₂
• Hexadecimal: 0x4FE3F4A40
• Base-36: 9UO1ZK0

Squares and roots of 21445429824

• 21445429824 squared (21445429824²) is 459906460336108670976
• 21445429824 cubed (21445429824³) is 9862891720742257956653713588224
• The square root of 21445429824 is 146442.5820040059
• The cube root of 21445429824 is 2778.2943241873

Scales and comparisons

• 21,445,429,824 seconds is equal to 681 years, 46 weeks, 4 days, 23 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,445,429,824 would take you about one thousand, three hundred sixty-three 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 21445429824 cubic inches would be around 231.5 feet tall.

Recreational maths with 21445429824

• 21445429824 backwards is 42892454412
• The number of decimal digits it has is: 11
• The sum of 21445429824's digits is 45
• More coming soon!