21004987342426880

Names of 21004987342426880

• Cardinal: 21004987342426880 can be written as Twenty-one quadrillion, four trillion, nine hundred eighty-seven billion, three hundred forty-two million, four hundred twenty-six thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.100498734242688 × 10¹⁶

Factors of 21004987342426880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 56018

Divisors of 21004987342426880

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 124 128 130 155 160 169 208 248 256 260 310 320 338 403 416 496 520 620 640 676 806 832 845 992 1040 1240 1280 1352 1612 1664 1690 1984 2015 2080 2480 2704 3224 3328 3380 3968 4030 4160 4960 5239 5408 6448 6760 7936 8060 8320 9920 10478 10816 12896 13520 16120 16640 19840 20956 21632 25792 26195 27040 32240 39680 41912 43264 51584 52390 54080 55967 64480 83824 103168 104780 108160 111934 128960 167648 209560 216320 223868 257920 279835 335296 419120 447736 515840 559670 670592 727571 838240 895472 1119340 1341184 1455142 1676480 1734977 1790944 2238680 2910284 3352960 3469954 3581888 3637855 4477360 5820568 6705920 6939908 7163776 7275710 8674885 8954720 9458423 11641136 13879816 14327552 14551420 17349770 17909440 18916846 22554701 23282272 27759632 29102840 34699540 35818880 37833692 45109402 46564544 47292115 55519264 58205680 69399080 71637760 75667384 90218804 93129088 94584230 111038528 112773505 116411360 138798160 151334768 180437608 186258176 189168460 222077056 225547010 232822720 277596320 293211113 302669536 360875216 378336920 444154112 451094020 465645440 555192640 586422226 605339072 721750432 756673840 902188040 931290880 1110385280 1172844452 1210678144 1443500864 1466055565 1513347680 1804376080 2220770560 2345688904 2421356288 2887001728 2932111130 3026695360 3132305089 3608752160 4691377808 5774003456 5864222260 6053390720 6264610178 7217504320 9382755616 11728444520 12106781440 12529220356 14435008640 15661525445 18765511232 23456889040 25058440712 28870017280 31323050890 37531022464 40719966157 46913778080 50116881424 62646101780 75062044928 81439932314 93827556160 97101457759 100233762848 125292203560 162879864628 187655112320 194202915518 200467525696 203599830785 250584407120 325759729256 375310224640 388405831036 400935051392 407199661570 485507288795 501168814240 529359560041 651519458512 776811662072 801870102784 814399323140 971014577590 1002337628480 1058719120082 1262318950867 1303038917024 1553623324144 1628798646280 1942029155180 2004675256960 2117438240164 2524637901734 2606077834048 2646797800205 3107246648288 3257597292560 3884058310360 4009350513920 4234876480328 5049275803468 5212155668096 5293595600410 6214493296576 6311594754335 6515194585120 7768116620720 8469752960656 10098551606936 10424311336192 10587191200820 12428986593152 12623189508670 13030389170240 15536233241440 16410146361271 16939505921312 20197103213872 21174382401640 24857973186304 25246379017340 26060778340480 31072466482880 32820292722542 33879011842624 40394206427744 42348764803280 50492758034680 52121556680960 62144932965760 65640585445084 67758023685248 80788412855488 82050731806355 84697529606560 100985516069360 124289865931520 131281170890168 135516047370496 161576825710976 164101463612710 169395059213120 201971032138720 262562341780336 323153651421952 328202927225420 338790118426240 403942064277440 525124683560672 656405854450840 677580236852480 807884128554880 1050249367121344 1312811708901680 1615768257109760 2100498734242688 2625623417803360 4200997468485376 5251246835606720 10502493671213440 21004987342426880
• Sum of all divisors σ(n): 56239964068462272
• Sum of proper divisors (its aliquot sum) s(n): 35234976726035392
• 21004987342426880 is an abundant number, because the sum of its proper divisors (35234976726035392) is greater than itself. Its abundance is 14229989383608512

Bases of 21004987342426880

• Binary: 1001010100111111110110010111001000011101001001100000000₂
• Hexadecimal: 0x4A9FECB90E9300
• Base-36: 5QTN9YYZ94W

Squares and roots of 21004987342426880

• 21004987342426880 squared (21004987342426880²) is 441209493255513442957288146534400
• 21004987342426880 cubed (21004987342426880³) is 9267599821190637749509590143131320331557404672000
• The square root of 21004987342426880 is 144930974.4065321601
• The cube root of 21004987342426880 is 275914.2567023437

Scales and comparisons

• 21,004,987,342,426,880 seconds is equal to 667,893,624 years, 41 weeks, 3 days, 5 hours, 41 minutes, 20 seconds.
• To count from 1 to 21,004,987,342,426,880 would take you about two billion, three million, six hundred eighty thousand, eight hundred seventy-four 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 21004987342426880 cubic inches would be around 22992.9 feet tall.

Recreational maths with 21004987342426880

• 21004987342426880 backwards is 08862424378940012
• The number of decimal digits it has is: 17
• The sum of 21004987342426880's digits is 68
• More coming soon!