21017163744

Names of 21017163744

• Cardinal: 21017163744 can be written as Twenty-one billion, seventeen million, one hundred sixty-three thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1017163744 × 10¹⁰

Factors of 21017163744

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 481

Divisors of 21017163744

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 27 31 32 36 46 48 54 62 69 72 92 93 96 108 109 124 138 144 184 186 207 216 218 248 276 279 288 313 327 368 372 414 432 436 496 552 558 621 626 654 713 736 744 828 837 864 872 939 981 992 1104 1116 1242 1252 1308 1426 1488 1656 1674 1744 1878 1962 2139 2208 2232 2484 2504 2507 2616 2817 2852 2943 2976 3312 3348 3379 3488 3756 3924 4278 4464 4968 5008 5014 5232 5634 5704 5886 6417 6624 6696 6758 7199 7512 7521 7848 8451 8556 8928 9703 9936 10016 10028 10137 10464 11268 11408 11772 12834 13392 13516 14398 15024 15042 15696 16902 17112 19251 19406 19872 20056 20274 21597 22536 22563 22816 23544 25668 26784 27032 28796 29109 30048 30084 30411 31392 33804 34117 34224 38502 38812 40112 40548 43194 45072 45126 47088 51336 54064 57592 58218 60168 60822 64791 67608 67689 68234 68448 77004 77624 77717 80224 81096 86388 87327 90144 90252 91233 94176 102351 102672 108128 115184 116436 120336 121644 129582 135216 135378 136468 154008 155248 155434 162192 172776 174654 180504 182466 194373 204702 205344 223169 230368 232872 233151 240672 243288 259164 261981 270432 270756 272936 307053 308016 310496 310868 324384 345552 349308 361008 364932 388746 409404 446338 465744 466302 486576 518328 523962 541512 545872 614106 616032 621736 669507 691104 698616 699453 722016 729864 777492 784691 818808 892676 921159 931488 932604 973152 1036656 1047924 1057627 1083024 1091744 1228212 1243472 1339014 1397232 1398906 1459728 1554984 1569382 1637616 1785352 1842318 1865208 2008521 2073312 2095848 2098359 2115254 2166048 2354073 2456424 2486944 2678028 2794464 2797812 2919456 3109968 3138764 3172881 3275232 3570704 3684636 3730416 4017042 4191696 4196718 4230508 4708146 4912848 5356056 5595624 6025563 6219936 6277528 6345762 7062219 7141408 7369272 7460832 8034084 8383392 8393436 8461016 9416292 9518643 9825696 10712112 11191248 12051126 12555056 12691524 14124438 14738544 16068168 16786872 16922032 18832584 19037286 21186657 21424224 22382496 24102252 24325421 25110112 25383048 28248876 28555929 29477088 32136336 33573744 33844064 37665168 38074572 42373314 48204504 48650842 50766096 56497752 57111858 64272672 67147488 72976263 75330336 76149144 84746628 96409008 97301684 101532192 112995504 114223716 145952526 152298288 169493256 192818016 194603368 218928789 225991008 228447432 291905052 304596576 338986512 389206736 437857578 456894864 583810104 656786367 677973024 778413472 875715156 913789728 1167620208 1313572734 1751430312 2335240416 2627145468 3502860624 5254290936 7005721248 10508581872 21017163744
• Sum of all divisors σ(n): 66847334400
• Sum of proper divisors (its aliquot sum) s(n): 45830170656
• 21017163744 is an abundant number, because the sum of its proper divisors (45830170656) is greater than itself. Its abundance is 24813006912

Bases of 21017163744

• Binary: 10011100100101110000111011111100000₂
• Hexadecimal: 0x4E4B877E0
• Base-36: 9NL2RC0

Squares and roots of 21017163744

• 21017163744 squared (21017163744²) is 441721171842108097536
• 21017163744 cubed (21017163744³) is 9283726197797148000062434934784
• The square root of 21017163744 is 144972.9759093053
• The cube root of 21017163744 is 2759.6756140499

Scales and comparisons

• 21,017,163,744 seconds is equal to 668 years, 14 weeks, 4 days, 5 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,017,163,744 would take you about one thousand, three hundred thirty-six 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 21017163744 cubic inches would be around 230 feet tall.

Recreational maths with 21017163744

• 21017163744 backwards is 44736171012
• 21017163744 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21017163744's digits is 36
• More coming soon!