21949812378

Names of 21949812378

• Cardinal: 21949812378 can be written as Twenty-one billion, nine hundred forty-nine million, eight hundred twelve thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 2.1949812378 × 10¹⁰

Factors of 21949812378

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 64

Divisors of 21949812378

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 3 6 9 13 17 18 26 27 29 34 39 51 54 58 78 81 87 102 117 153 162 174 221 234 243 261 306 351 377 442 459 486 493 522 663 702 729 754 783 841 918 986 1053 1131 1326 1377 1458 1479 1566 1682 1989 2106 2187 2262 2349 2523 2754 2958 3159 3393 3978 4131 4374 4437 4698 5046 5967 6318 6409 6561 6786 7047 7569 8262 8874 9477 10179 10933 11934 12393 12818 13122 13311 14094 14297 15138 17901 18954 19227 19683 20358 21141 21866 22707 24786 26622 28431 28594 30537 32799 35802 37179 38454 39366 39933 42282 42891 45414 53703 56862 57681 59049 61074 63423 65598 68121 74358 79866 85293 85782 91611 98397 107406 111537 115362 118098 119799 126846 128673 136242 161109 170586 173043 183222 185861 190269 196794 204363 223074 239598 255879 257346 274833 295191 322218 334611 346086 359397 371722 380538 386019 408726 483327 511758 519129 549666 557583 570807 590382 613089 669222 718794 767637 772038 824499 885573 966654 1003833 1038258 1078191 1115166 1141614 1158057 1226178 1449981 1535274 1557387 1648998 1672749 1712421 1771146 1839267 2007666 2156382 2316114 2473497 2656719 2899962 3114774 3234573 3345498 3424842 3474171 3678534 4349943 4672161 4946994 5018247 5313438 5517801 6469146 6948342 7420491 7970157 8699886 9344322 9703719 10036494 10422513 11035602 13049829 14016483 14840982 15054741 15940314 16553403 19407438 20845026 22261473 23910471 26099658 28032966 29111157 30109482 31267539 33106806 42049449 44522946 45164223 47820942 49660209 58222314 62535078 71731413 84098898 90328446 93802617 99320418 126148347 135492669 143462826 187605234 215194239 252296694 270985338 281407851 378445041 406478007 430388478 562815702 645582717 756890082 812956014 844223553 1219434021 1291165434 1688447106 2438868042 3658302063 7316604126 10974906189 21949812378
• Sum of all divisors σ(n): 58323194748
• Sum of proper divisors (its aliquot sum) s(n): 36373382370
• 21949812378 is an abundant number, because the sum of its proper divisors (36373382370) is greater than itself. Its abundance is 14423569992

Bases of 21949812378

• Binary: 10100011100010011111000111010011010₂
• Hexadecimal: 0x51C4F8E9A
• Base-36: A30CNMI

Squares and roots of 21949812378

• 21949812378 squared (21949812378²) is 481794263429402014884
• 21949812378 cubed (21949812378³) is 10575293687072081075438963434152
• The square root of 21949812378 is 148154.6907053571
• The cube root of 21949812378 is 2799.9069857707

Scales and comparisons

• 21,949,812,378 seconds is equal to 697 years, 48 weeks, 4 days, 18 hours, 6 minutes, 18 seconds.
• To count from 1 to 21,949,812,378 would take you about one thousand, three hundred ninety-five 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 21949812378 cubic inches would be around 233.3 feet tall.

Recreational maths with 21949812378

• 21949812378 backwards is 87321894912
• 21949812378 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21949812378's digits is 54
• More coming soon!