21512994624

Names of 21512994624

• Cardinal: 21512994624 can be written as Twenty-one billion, five hundred twelve million, nine hundred ninety-four thousand, six hundred twenty-four.

Scientific notation

• Scientific notation: 2.1512994624 × 10¹⁰

Factors of 21512994624

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 371

Divisors of 21512994624

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 17 18 22 24 32 33 34 36 44 48 51 64 66 67 68 72 88 96 99 102 121 132 134 136 144 153 176 187 192 198 201 204 242 264 268 271 272 288 306 352 363 374 396 402 408 484 528 536 542 544 561 576 603 612 704 726 737 748 792 804 813 816 968 1056 1072 1084 1088 1089 1122 1139 1206 1224 1452 1474 1496 1584 1608 1626 1632 1683 1936 2057 2112 2144 2168 2178 2211 2244 2278 2412 2439 2448 2904 2948 2981 2992 3168 3216 3252 3264 3366 3417 3872 4114 4288 4336 4356 4422 4488 4556 4607 4824 4878 4896 5808 5896 5962 5984 6171 6336 6432 6504 6633 6732 6834 7744 8107 8228 8672 8712 8844 8943 8976 9112 9214 9648 9756 9792 10251 11616 11792 11924 11968 12342 12529 12864 13008 13266 13464 13668 13821 16214 16456 17344 17424 17688 17886 17952 18157 18224 18428 18513 19296 19512 20502 23232 23584 23848 24321 24684 25058 26016 26532 26829 26928 27336 27642 32428 32791 32912 34848 35376 35772 35904 36314 36448 36856 37026 37587 38592 39024 41004 41463 47168 47696 48642 49368 50116 50677 52032 53064 53658 53856 54471 54672 55284 64856 65582 65824 69696 70752 71544 72628 72896 72963 73712 74052 75174 78048 82008 82926 95392 97284 98373 98736 100232 101354 106128 107316 107712 108942 109344 110568 112761 129712 131164 131648 137819 141504 143088 145256 145926 147424 148104 150348 152031 156096 163413 164016 165852 190784 194568 196746 197472 199727 200464 202708 212256 214632 217884 218688 221136 225522 259424 262328 275638 286176 290512 291852 294848 295119 296208 300696 304062 308669 326826 328032 331704 389136 393492 394944 399454 400928 405416 413457 424512 429264 435768 442272 451044 456093 518848 524656 551276 557447 572352 581024 583704 590238 592416 599181 601392 608124 617338 653652 656064 663408 778272 786984 798908 801856 810832 826914 858528 871536 884544 902088 912186 926007 1049312 1102552 1114894 1162048 1167408 1180476 1184832 1198362 1202784 1216248 1234676 1240371 1307304 1326816 1556544 1573968 1597816 1621664 1653828 1672341 1717056 1743072 1797543 1804176 1824372 1852014 2098624 2196997 2205104 2229788 2334816 2360952 2396724 2405568 2432496 2469352 2480742 2614608 2653632 2778021 3147936 3195632 3243328 3307656 3344682 3395359 3486144 3595086 3608352 3648744 3704028 4393994 4410208 4459576 4669632 4721904 4793448 4864992 4938704 4961484 5017023 5229216 5556042 6295872 6391264 6590991 6615312 6689364 6790718 7190172 7216704 7297488 7408056 8787988 8820416 8919152 9443808 9586896 9729984 9877408 9922968 10034046 10186077 10458432 11112084 12782528 13181982 13230624 13378728 13581436 14380344 14594976 14816112 17575976 17838304 18887616 19173792 19754816 19772973 19845936 20068092 20372154 22224168 26363964 26461248 26757456 27162872 28760688 29189952 29632224 30558231 35151952 35676608 37348949 38347584 39545946 39691872 40136184 40744308 44448336 52727928 53514912 54325744 57521376 59264448 61116462 70303904 74697898 79091892 79383744 80272368 81488616 88896672 105455856 107029824 108651488 112046847 115042752 122232924 140607808 149395796 158183784 160544736 162977232 177793344 210911712 217302976 224093694 244465848 298791592 316367568 321089472 325954464 336140541 421823424 448187388 488931696 597583184 632735136 651908928 672281082 896374776 977863392 1195166368 1265470272 1344562164 1792749552 1955726784 2390332736 2689124328 3585499104 5378248656 7170998208 10756497312 21512994624
• Sum of all divisors σ(n): 73105329024
• Sum of proper divisors (its aliquot sum) s(n): 51592334400
• 21512994624 is an abundant number, because the sum of its proper divisors (51592334400) is greater than itself. Its abundance is 30079339776

Bases of 21512994624

• Binary: 10100000010010001100011111101000000₂
• Hexadecimal: 0x502463F40
• Base-36: 9VSA4W0

Squares and roots of 21512994624

• 21512994624 squared (21512994624²) is 462808937692252901376
• 21512994624 cubed (21512994624³) is 9956406188512587633750290202624
• The square root of 21512994624 is 146673.0875927823
• The cube root of 21512994624 is 2781.2089795311

Scales and comparisons

• 21,512,994,624 seconds is equal to 684 years, 2 weeks, 2 days, 23 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,512,994,624 would take you about one thousand, three hundred sixty-eight 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 21512994624 cubic inches would be around 231.8 feet tall.

Recreational maths with 21512994624

• 21512994624 backwards is 42649921512
• The number of decimal digits it has is: 11
• The sum of 21512994624's digits is 45
• More coming soon!