642213465840

Names of 642213465840

• Cardinal: 642213465840 can be written as Six hundred forty-two billion, two hundred thirteen million, four hundred sixty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.4221346584 × 10¹¹

Factors of 642213465840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 454

Divisors of 642213465840

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 43 45 48 54 60 72 80 86 90 108 120 129 135 144 172 180 215 216 240 258 270 344 360 387 401 430 432 516 540 645 688 720 774 802 860 1032 1080 1161 1203 1290 1548 1604 1720 1849 1935 2005 2064 2160 2322 2406 2580 3096 3208 3440 3609 3698 3870 4010 4644 4812 5160 5547 5805 6015 6192 6416 7218 7396 7740 8020 9245 9288 9624 10320 10827 11094 11610 12030 14436 14792 15480 16040 16641 17243 18045 18490 18576 19248 21654 22188 23220 24060 27735 28872 29584 30960 32080 33282 34486 36090 36980 43308 44376 46440 48120 49923 51729 54135 55470 57744 66564 68972 72180 73960 83205 86215 86616 88752 92880 96240 99846 103458 108270 110940 133128 137944 144360 147920 155187 160801 166410 172430 173232 199692 206916 216540 221880 249615 258645 266256 275888 288720 310374 321602 332820 344860 399384 413832 433080 443760 465561 482403 499230 517290 620748 643204 665640 689720 741449 775935 798768 804005 827664 866160 931122 964806 998460 1034580 1241496 1286408 1331280 1379440 1447209 1482898 1551870 1608010 1862244 1929612 1996920 2069160 2224347 2327805 2412015 2482992 2572816 2894418 2965796 3103740 3216020 3707245 3724488 3859224 3993840 4138320 4341627 4448694 4655610 4824030 5788836 5931592 6207480 6432040 6673041 6914443 7236045 7414490 7448976 7718448 8683254 8897388 9311220 9648060 11121735 11577672 11863184 12414960 12864080 13346082 13828886 14472090 14828980 17366508 17794776 18622440 19296120 20019123 20743329 21708135 22243470 23155344 26692164 27657772 28944180 29657960 33365205 34572215 34733016 35589552 37244880 38592240 40038246 41486658 43416270 44486940 53384328 55315544 57888360 59315920 62229987 66730410 69144430 69466032 80076492 82973316 86832540 88973880 100095615 103716645 106768656 110631088 115776720 124459974 133460820 138288860 160152984 165946632 173665080 177947760 186689961 200191230 207433290 248919948 266921640 276577720 297321049 311149935 320305968 331893264 347330160 373379922 400382460 414866580 497839896 533843280 553155440 594642098 622299870 746759844 800764920 829733160 891963147 933449805 995679792 1189284196 1244599740 1486605245 1493519688 1601529840 1659466320 1783926294 1866899610 2378568392 2489199480 2675889441 2973210490 2987039376 3567852588 3733799220 4459815735 4757136784 4978398960 5351778882 5946420980 7135705176 7467598440 8027668323 8919631470 10703557764 11892841960 13379447205 14271410352 14935196880 16055336646 17839262940 21407115528 23785683920 26758894410 32110673292 35678525880 40138341615 42814231056 53517788820 64221346584 71357051760 80276683230 107035577640 128442693168 160553366460 214071155280 321106732920 642213465840
• Sum of all divisors σ(n): 2270370155760
• Sum of proper divisors (its aliquot sum) s(n): 1628156689920
• 642213465840 is an abundant number, because the sum of its proper divisors (1628156689920) is greater than itself. Its abundance is 985943224080

Bases of 642213465840

• Binary: 1001010110000110111001111100111011110000₂
• Hexadecimal: 0x9586E7CEF0
• Base-36: 8711BDO0

Squares and roots of 642213465840

• 642213465840 squared (642213465840²) is 412438135706224846905600
• 642213465840 cubed (642213465840³) is 264873324576482914993568775304704000
• The square root of 642213465840 is 801382.2220638539
• The cube root of 642213465840 is 8627.6622611099

Scales and comparisons

• 642,213,465,840 seconds is equal to 20,420 years, 20 weeks, 6 days, 5 hours, 24 minutes.
• To count from 1 to 642,213,465,840 would take you about forty thousand, eight hundred forty 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 642213465840 cubic inches would be around 719 feet tall.

Recreational maths with 642213465840

• 642213465840 backwards is 048564312246
• 642213465840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 642213465840's digits is 45
• More coming soon!