21428690976

Names of 21428690976

• Cardinal: 21428690976 can be written as Twenty-one billion, four hundred twenty-eight million, six hundred ninety thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 2.1428690976 × 10¹⁰

Factors of 21428690976

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 188

Divisors of 21428690976

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 31 32 33 36 42 44 48 49 56 61 62 63 66 72 73 77 84 88 93 96 98 99 112 122 124 126 132 144 146 147 154 168 176 183 186 196 198 217 219 224 231 244 248 252 264 279 288 292 294 308 336 341 352 366 372 392 396 427 434 438 441 462 488 496 504 511 528 539 549 558 584 588 616 651 657 671 672 682 693 732 744 784 792 803 854 868 876 882 924 976 992 1008 1022 1023 1056 1078 1098 1116 1168 1176 1232 1281 1302 1314 1342 1364 1386 1464 1488 1519 1533 1568 1584 1606 1617 1708 1736 1752 1764 1848 1891 1952 1953 2013 2016 2044 2046 2156 2196 2232 2263 2336 2352 2387 2409 2464 2562 2604 2628 2684 2728 2772 2928 2976 2989 3038 3066 3069 3168 3212 3234 3416 3472 3504 3528 3577 3696 3782 3843 3906 4026 4088 4092 4312 4392 4453 4464 4526 4557 4599 4697 4704 4774 4818 4851 5124 5208 5256 5368 5456 5544 5621 5673 5856 5978 6039 6076 6132 6138 6424 6468 6789 6832 6944 7008 7056 7154 7161 7227 7392 7564 7686 7812 8052 8176 8184 8624 8784 8906 8928 8967 9052 9114 9198 9394 9548 9636 9702 10248 10416 10512 10731 10736 10912 11088 11242 11346 11956 12078 12152 12264 12276 12848 12936 13237 13359 13578 13664 13671 14091 14112 14308 14322 14454 15128 15372 15624 15841 16104 16352 16368 16709 16863 17019 17248 17568 17812 17934 18104 18228 18396 18788 19096 19272 19404 20367 20496 20801 20832 21024 21462 21472 21483 22176 22484 22692 23912 24156 24304 24528 24552 24893 25696 25872 26474 26718 26901 27156 27342 28182 28616 28644 28908 30256 30744 31171 31248 31682 32193 32208 32736 32879 33418 33726 34038 35624 35868 36208 36456 36792 37576 38192 38544 38808 39347 39711 40077 40734 40992 41602 42273 42924 42966 44968 45384 47523 47824 48312 48608 48983 49056 49104 49786 50127 50589 51744 52948 53436 53802 54312 54684 56364 57232 57288 57816 60512 61488 62342 62403 62496 63364 64386 64416 65758 66836 67452 68076 71248 71736 72416 72912 73584 74679 75152 76384 77088 77616 78694 79422 80154 81468 83204 84546 85848 85932 89936 90768 92659 93513 95046 95648 96624 97966 98208 98637 99572 100254 101178 105896 106872 107604 108624 109368 110887 112728 114464 114576 115632 118041 119133 122976 124684 124806 126728 128772 131516 133672 134904 136152 138043 142496 142569 143472 145607 145824 146949 147168 149358 150304 150381 155232 157388 158844 160308 162936 166408 169092 171696 171864 174251 179872 181536 185318 187026 187209 190092 193248 195932 197274 199144 200508 202356 211792 213744 215208 217248 218197 218736 221774 224037 225456 229152 231264 236082 238266 249368 249612 253456 257544 263032 267344 269808 272304 276086 277977 280539 285138 286944 291214 293898 295911 298716 300762 314776 317688 320616 325872 332661 332816 338184 342881 343392 343728 348502 354123 370636 374052 374418 380184 391864 394548 398288 401016 404712 414129 423584 427488 430416 436394 436821 437472 440847 443548 448074 450912 472164 476532 498736 499224 506912 515088 522753 526064 534688 539616 544608 552172 555954 561078 570276 582428 587796 591822 597432 601524 629552 635376 641232 651744 654591 665322 665632 676368 685762 687456 697004 708246 741272 748104 748836 760368 783728 789096 796576 802032 809424 828258 833931 860832 872788 873642 881694 887096 896148 944328 953064 966301 997472 997983 998448 1019249 1028643 1030176 1045506 1052128 1104344 1111908 1122156 1140552 1164856 1175592 1183644 1194864 1203048 1219757 1242387 1259104 1270752 1282464 1309182 1310463 1330644 1352736 1371524 1394008 1416492 1482544 1496208 1497672 1518473 1520736 1567456 1568259 1578192 1604064 1618848 1656516 1667862 1745576 1747284 1763388 1774192 1792296 1888656 1906128 1932602 1963773 1995966 1996896 2038498 2057286 2091012 2208688 2223816 2244312 2281104 2329712 2351184 2367288 2389728 2400167 2406096 2439514 2484774 2618364 2620926 2661288 2743048 2788016 2832984 2898903 2965088 2992416 2995344 3036946 3057747 3085929 3136518 3156384 3313032 3335724 3491152 3494568 3526776 3548384 3584592 3659271 3777312 3812256 3865204 3927546 3991932 4076996 4114572 4182024 4417376 4447632 4488624 4555419 4562208 4659424 4702368 4734576 4800334 4812192 4879028 4969548 5236728 5241852 5322576 5486096 5576032 5665968 5797806 5990688 6073892 6115494 6171858 6273036 6626064 6671448 6764107 6982304 6989136 7053552 7169184 7200501 7318542 7730408 7855092 7983864 8153992 8229144 8364048 8696709 8895264 8977248 9110838 9173241 9469152 9600668 9758056 9939096 10473456 10483704 10629311 10645152 10972192 10977813 11331936 11595612 12147784 12230988 12343716 12546072 13252128 13342896 13528214 13666257 13978272 14107104 14401002 14637084 15460816 15710184 15967728 16307984 16458288 16728096 17393418 18221676 18346482 19201336 19516112 19878192 20292321 20946912 20967408 21258622 21601503 21955626 23191224 24295568 24461976 24687432 25092144 26685792 27056428 27332514 28802004 29274168 30921632 31420368 31887933 31935456 32615968 32916576 34786836 36443352 36692964 38402672 39032224 39756384 40584642 41934816 42517244 43203006 43911252 46382448 48591136 48923952 49374864 50184288 54112856 54665028 57604008 58548336 60876963 62840736 63775866 69573672 72886704 73385928 74405177 76805344 81169284 85034488 86406012 87822504 92764896 95663799 97847904 98749728 108225712 109330056 115208016 117096672 121753926 127551732 139147344 145773408 146771856 148810354 162338568 170068976 172812024 175645008 191327598 216451424 218660112 223215531 230416032 243507852 255103464 278294688 293543712 297620708 324677136 340137952 345624048 351290016 382655196 437320224 446431062 487015704 510206928 595241416 649354272 669646593 691248096 765310392 892862124 974031408 1020413856 1190482832 1339293186 1530620784 1785724248 1948062816 2380965664 2678586372 3061241568 3571448496 5357172744 7142896992 10714345488 21428690976
• Sum of all divisors σ(n): 82245735936
• Sum of proper divisors (its aliquot sum) s(n): 60817044960
• 21428690976 is an abundant number, because the sum of its proper divisors (60817044960) is greater than itself. Its abundance is 39388353984

Bases of 21428690976

• Binary: 10011111101001111111110000000100000₂
• Hexadecimal: 0x4FD3FE020
• Base-36: 9UE37S0

Squares and roots of 21428690976

• 21428690976 squared (21428690976²) is 459188796944903832576
• 21428690976 cubed (21428690976³) is 9839814829373557126309146034176
• The square root of 21428690976 is 146385.4192739153
• The cube root of 21428690976 is 2777.5712866655

Scales and comparisons

• 21,428,690,976 seconds is equal to 681 years, 19 weeks, 6 hours, 9 minutes, 36 seconds.
• To count from 1 to 21,428,690,976 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 21428690976 cubic inches would be around 231.5 feet tall.

Recreational maths with 21428690976

• 21428690976 backwards is 67909682412
• The number of decimal digits it has is: 11
• The sum of 21428690976's digits is 54
• More coming soon!