21087029499840

Names of 21087029499840

• Cardinal: 21087029499840 can be written as Twenty-one trillion, eighty-seven billion, twenty-nine million, four hundred ninety-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.108702949984 × 10¹³

Factors of 21087029499840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 13102

Divisors of 21087029499840

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 43 45 48 60 64 72 80 86 90 96 120 129 144 160 172 180 192 215 240 258 288 320 344 360 387 430 480 516 576 645 688 720 774 860 960 1032 1290 1376 1440 1548 1720 1935 2064 2580 2752 2880 3096 3440 3870 4128 5160 6192 6880 7740 8256 10320 12384 13049 13760 15480 20640 24768 26098 30960 39147 41280 52196 61920 65245 78294 104392 117441 123840 130490 156588 195735 208784 234882 260980 313176 391470 417568 469764 521960 561107 587205 626352 782940 835136 939528 1043920 1122214 1174410 1252704 1565880 1683321 1879056 2087840 2244428 2348820 2505408 2805535 3131760 3366642 3758112 4175680 4488856 4697640 5049963 5611070 6263520 6733284 7516224 8416605 8977712 9395280 10099926 11222140 12527040 13466568 16833210 17955424 18790560 20199852 22444280 25249815 26933136 33666420 35910848 37581120 40399704 44888560 50499630 53866272 67332840 80799408 89777120 100999260 107732544 134665680 161598816 170276401 179554240 201998520 269331360 323197632 340552802 403997040 510829203 538662720 681105604 807994080 851382005 1021658406 1362211208 1532487609 1615988160 1702764010 2043316812 2554146015 2724422416 3064975218 3405528020 4086633624 5108292030 5448844832 6129950436 6811056040 7321885243 7662438045 8173267248 10216584060 10897689664 12259900872 13622112080 14643770486 15324876090 16346534496 20433168120 21965655729 24519801744 27244224160 29287540972 30649752180 32693068992 36609426215 40866336240 43931311458 49039603488 54488448320 58575081944 61299504360 65896967187 73218852430 81732672480 87862622916 98079206976 109828278645 117150163888 122599008720 131793934374 146437704860 163465344960 175725245832 219656557290 234300327776 245198017440 263587868748 292875409720 329484835935 351450491664 439313114580 468600655552 490396034880 527175737496 585750819440 658969671870 702900983328 878626229160 1054351474992 1171501638880 1317939343740 1405801966656 1757252458320 2108702949984 2343003277760 2635878687480 3514504916640 4217405899968 5271757374960 7029009833280 10543514749920 21087029499840
• Sum of all divisors σ(n): 74223041270664
• Sum of proper divisors (its aliquot sum) s(n): 53136011770824
• 21087029499840 is an abundant number, because the sum of its proper divisors (53136011770824) is greater than itself. Its abundance is 32048982270984

Bases of 21087029499840

• Binary: 100110010110110110100111001110001011111000000₂
• Hexadecimal: 0x132DB4E717C0
• Base-36: 7H38WWVK0

Squares and roots of 21087029499840

• 21087029499840 squared (21087029499840²) is 444662813127122400560025600
• 21087029499840 cubed (21087029499840³) is 9376617857893471260619736763865595904000
• The square root of 21087029499840 is 4592061.5740471077
• The cube root of 21087029499840 is 27627.3015833157

Scales and comparisons

• 21,087,029,499,840 seconds is equal to 670,502 years, 16 weeks, 1 day, 10 hours, 24 minutes.
• To count from 1 to 21,087,029,499,840 would take you about one million, six hundred seventy-six thousand, two hundred fifty-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 21087029499840 cubic inches would be around 2302.3 feet tall.

Recreational maths with 21087029499840

• 21087029499840 backwards is 04899492078012
• The number of decimal digits it has is: 14
• The sum of 21087029499840's digits is 63
• More coming soon!