21972807785920

Names of 21972807785920

• Cardinal: 21972807785920 can be written as Twenty-one trillion, nine hundred seventy-two billion, eight hundred seven million, seven hundred eighty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.197280778592 × 10¹³

Factors of 21972807785920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2262

Divisors of 21972807785920

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 41 64 76 80 82 95 152 160 164 190 197 205 257 304 320 328 380 394 410 514 608 656 760 779 788 820 985 1028 1216 1285 1312 1520 1558 1576 1640 1741 1970 2056 2570 2624 3040 3116 3152 3280 3482 3743 3895 3940 4112 4883 5140 6080 6232 6304 6560 6964 7486 7790 7880 8077 8224 8705 9766 10280 10537 12464 12608 13120 13928 14972 15580 15760 16154 16448 17410 18715 19532 20560 21074 24415 24928 27856 29944 31160 31520 32308 33079 34820 37430 39064 40385 41120 42148 48830 49856 50629 52685 55712 59888 62320 63040 64616 66158 69640 71381 74860 78128 80770 82240 84296 97660 101258 105370 111424 119776 124640 129232 132316 139280 142762 149720 153463 156256 161540 165395 168592 195320 200203 202516 210740 239552 249280 253145 258464 264632 278560 285524 299440 306926 312512 323080 330790 337184 342977 356905 390640 400406 405032 421480 447437 506290 516928 529264 557120 571048 598880 613852 646160 661580 674368 685954 713810 767315 781280 800812 810064 842960 894874 961951 1001015 1012580 1058528 1142096 1197760 1227704 1292320 1323160 1356239 1371908 1427620 1534630 1562560 1601624 1620128 1685920 1714885 1789748 1923902 2002030 2025160 2075789 2117056 2237185 2284192 2455408 2584640 2646320 2712478 2743816 2855240 3069260 3203248 3240256 3371840 3429770 3579496 3847804 4004060 4050320 4151578 4474370 4568384 4809755 4910816 5292640 5424956 5487632 5710480 6138520 6406496 6516563 6781195 6859540 7158992 7695608 8008120 8100640 8303156 8501303 8948740 9619510 9821632 10378945 10585280 10849912 10975264 11420960 12277040 12812992 13033126 13562390 13719080 14062057 14317984 15391216 16016240 16201280 16606312 17002606 17897480 18344917 19239020 20757890 21699824 21950528 22841920 24554080 26066252 27124780 27438160 28124114 28635968 30782432 32032480 32582815 33212624 34005212 35794960 36689834 38478040 39439991 41515780 42506515 43399648 49108160 52132504 54249560 54876320 56248228 61564864 64064960 65165630 66425248 68010424 70310285 71589920 73379668 76956080 78879982 83031560 85013030 86799296 88145089 91724585 104265008 108499120 109752640 112496456 130331260 132850496 136020848 140620570 143179840 146759336 153912160 157759964 166063120 170026060 176290178 183449170 197199955 208530016 216998240 224992912 260662520 267179083 272041696 281241140 293518672 307824320 315519928 332126240 340052120 348553423 352580356 366898340 394399910 417060032 433996480 440725445 449985824 521325040 534358166 544083392 562482280 587037344 631039856 664252480 680104240 697106846 705160712 733796680 788799820 881450890 899971648 1042650080 1068716332 1124964560 1174074688 1262079712 1335895415 1360208480 1394213692 1410321424 1467593360 1577599640 1674756691 1742767115 1762901780 2085300160 2137432664 2249929120 2524159424 2671790830 2720416960 2788427384 2820642848 2935186720 3155199280 3349513382 3485534230 3525803560 3613948649 4274865328 4499858240 5343581660 5576854768 5641285696 5870373440 6310398560 6699026764 6971068460 7051607120 7227897298 8373783455 8549730656 10687163320 11153709536 12620797120 13398053528 13942136920 14103214240 14455794596 16747566910 17099461312 18069743245 21374326640 22307419072 26796107056 27884273840 28206428480 28911589192 33495133820 36139486490 42748653280 53592214112 55768547680 57823178384 66990267640 68665024331 72278972980 85497306560 107184428224 111537095360 115646356768 133980535280 137330048662 144557945960 231292713536 267961070560 274660097324 289115891920 343325121655 535922141120 549320194648 578231783840 686650243310 1098640389296 1156463567680 1373300486620 2197280778592 2746600973240 4394561557184 5493201946480 10986403892960 21972807785920
• Sum of all divisors σ(n): 56959648986240
• Sum of proper divisors (its aliquot sum) s(n): 34986841200320
• 21972807785920 is an abundant number, because the sum of its proper divisors (34986841200320) is greater than itself. Its abundance is 13014033414400

Bases of 21972807785920

• Binary: 100111111101111110001011001110001110111000000₂
• Hexadecimal: 0x13FBF1671DC0
• Base-36: 7SE62FNB4

Squares and roots of 21972807785920

• 21972807785920 squared (21972807785920²) is 482804281996986572550246400
• 21972807785920 cubed (21972807785920³) is 10608565686538901847309749048334450688000
• The square root of 21972807785920 is 4687516.1638035981
• The cube root of 21972807785920 is 28008.8440539863

Scales and comparisons

• 21,972,807,785,920 seconds is equal to 698,667 years, 16 weeks, 4 days, 22 hours, 18 minutes, 40 seconds.
• To count from 1 to 21,972,807,785,920 would take you about one million, seven hundred forty-six thousand, six hundred sixty-eight 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 21972807785920 cubic inches would be around 2334.1 feet tall.

Recreational maths with 21972807785920

• 21972807785920 backwards is 02958770827912
• The number of decimal digits it has is: 14
• The sum of 21972807785920's digits is 67
• More coming soon!