1981520489728000

Names of 1981520489728000

• Cardinal: 1981520489728000 can be written as One quadrillion, nine hundred eighty-one trillion, five hundred twenty billion, four hundred eighty-nine million, seven hundred twenty-eight thousand.

Scientific notation

• Scientific notation: 1.981520489728 × 10¹⁵

Factors of 1981520489728000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 1897

Divisors of 1981520489728000

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 169 200 208 250 256 260 320 325 338 400 416 500 512 520 640 650 676 800 832 845 1000 1024 1040 1280 1300 1352 1600 1625 1664 1690 1877 2000 2048 2080 2197 2560 2600 2704 3200 3250 3328 3380 3754 4000 4160 4225 4394 5120 5200 5408 6400 6500 6656 6760 7508 8000 8320 8450 8788 9385 10240 10400 10816 10985 12800 13000 13312 13520 15016 16000 16640 16900 17576 18770 20800 21125 21632 21970 24401 25600 26000 26624 27040 30032 32000 33280 33800 35152 37540 41600 42250 43264 43940 46925 48802 51200 52000 54080 54925 60064 64000 66560 67600 70304 75080 83200 84500 86528 87880 93850 97604 104000 108160 109850 120128 122005 128000 133120 135200 140608 150160 166400 169000 173056 175760 187700 195208 208000 216320 219700 234625 240256 244010 256000 270400 274625 281216 300320 317213 332800 338000 346112 351520 375400 390416 416000 432640 439400 469250 480512 488020 540800 549250 562432 600640 610025 634426 665600 676000 703040 750800 780832 832000 865280 878800 938500 961024 976040 1081600 1098500 1124864 1201280 1220050 1268852 1352000 1406080 1501600 1561664 1586065 1664000 1730560 1757600 1877000 1922048 1952080 2163200 2197000 2249728 2402560 2440100 2537704 2704000 2812160 3003200 3050125 3123328 3172130 3328000 3515200 3523129 3754000 3844096 3904160 4123769 4326400 4394000 4499456 4805120 4880200 5075408 5408000 5624320 6006400 6100250 6246656 6344260 7030400 7046258 7508000 7808320 7930325 8247538 8652800 8788000 9610240 9760400 10150816 10816000 11248640 12012800 12200500 12493312 12688520 14060800 14092516 15016000 15616640 15860650 16495076 17576000 17615645 19220480 19520800 20301632 20618845 21632000 22497280 24025600 24401000 24986624 25377040 28121600 28185032 30032000 31233280 31721300 32990152 35152000 35231290 39041600 39651625 40603264 41237690 43264000 45800677 48051200 48802000 49973248 50754080 56243200 56370064 60064000 62466560 63442600 65980304 70304000 70462580 78083200 79303250 81206528 82475380 88078225 91601354 96102400 97604000 101508160 103094225 112486400 112740128 120128000 124933120 126885200 131960608 140608000 140925160 156166400 158606500 162413056 164950760 176156450 183202708 195208000 203016320 206188450 225480256 229003385 240256000 249866240 253770400 263921216 281216000 281850320 312332800 317213000 324826112 329901520 352312900 366405416 390416000 406032640 412376900 440391125 450960512 458006770 480512000 507540800 515471125 527842432 562432000 563700640 595408801 624665600 634426000 649652224 659803040 704625800 732810832 780832000 812065280 824753800 880782250 901921024 916013540 1015081600 1030942250 1055684864 1127401280 1145016925 1190817602 1249331200 1268852000 1319606080 1409251600 1465621664 1561664000 1624130560 1649507600 1761564500 1803842048 1832027080 2030163200 2061884500 2111369728 2254802560 2290033850 2381635204 2537704000 2639212160 2818503200 2931243328 2977044005 3123328000 3248261120 3299015200 3523129000 3607684096 3664054160 4060326400 4123769000 4222739456 4509605120 4580067700 4763270408 5075408000 5278424320 5637006400 5725084625 5862486656 5954088010 6246656000 6598030400 7046258000 7215368192 7328108320 7740314413 8120652800 8247538000 8445478912 9019210240 9160135400 9526540816 10150816000 10556848640 11274012800 11450169250 11724973312 11908176020 13196060800 14092516000 14656216640 14885220025 15480628826 16241305600 16495076000 18038420480 18320270800 19053081632 20301632000 21113697280 22548025600 22900338500 23449946624 23816352040 26392121600 28185032000 29312433280 29770440050 30961257652 32990152000 36076840960 36640541600 38106163264 38701572065 40603264000 42227394560 45096051200 45800677000 46899893248 47632704080 52784243200 56370064000 58624866560 59540880100 61922515304 65980304000 73281083200 74426100125 76212326528 77403144130 81206528000 90192102400 91601354000 93799786496 95265408160 105568486400 112740128000 117249733120 119081760200 123845030608 131960608000 146562166400 148852200250 152424653056 154806288260 180384204800 183202708000 190530816320 193507860325 211136972800 225480256000 234499466240 238163520400 247690061216 263921216000 293124332800 297704400500 304849306112 309612576520 366405416000 381061632640 387015720650 450960512000 468998932480 476327040800 495380122432 527842432000 586248665600 595408801000 609698612224 619225153040 732810832000 762123265280 774031441300 901921024000 952654081600 967539301625 990760244864 1055684864000 1172497331200 1190817602000 1219397224448 1238450306080 1465621664000 1524246530560 1548062882600 1905308163200 1935078603250 1981520489728 2344994662400 2381635204000 2476900612160 2931243328000 3048493061120 3096125765200 3810616326400 3870157206500 3963040979456 4763270408000 4953801224320 5862486656000 6096986122240 6192251530400 7621232652800 7740314413000 7926081958912 9526540816000 9907602448640 11724973312000 12384503060800 15242465305600 15480628826000 15852163917824 19053081632000 19815204897280 24769006121600 30484930611200 30961257652000 38106163264000 39630409794560 49538012243200 61922515304000 76212326528000 79260819589120 99076024486400 123845030608000 152424653056000 198152048972800 247690061216000 396304097945600 495380122432000 990760244864000 1981520489728000
• Sum of all divisors σ(n): 5359391032741200
• Sum of proper divisors (its aliquot sum) s(n): 3377870543013200
• 1981520489728000 is an abundant number, because the sum of its proper divisors (3377870543013200) is greater than itself. Its abundance is 1396350053285200

Bases of 1981520489728000

• Binary: 111000010100010111010110000111001111100100000000000₂
• Hexadecimal: 0x70A2EB0E7C800
• Base-36: JIE1Y28OHS

Squares and roots of 1981520489728000

• 1981520489728000 squared (1981520489728000²) is 3926423451211892953513984000000
• 1981520489728000 cubed (1981520489728000³) is 7780288519924894040344941914176356352000000000
• The square root of 1981520489728000 is 44514272.8765505053
• The cube root of 1981520489728000 is 125602.8582686255

Scales and comparisons

• 1,981,520,489,728,000 seconds is equal to 63,006,222 years, 17 weeks, 9 hours, 46 minutes, 40 seconds.
• To count from 1 to 1,981,520,489,728,000 would take you about one hundred eighty-nine million, eighteen thousand, six hundred sixty-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 1981520489728000 cubic inches would be around 10466.9 feet tall.

Recreational maths with 1981520489728000

• 1981520489728000 backwards is 0008279840251891
• 1981520489728000 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1981520489728000's digits is 64
• More coming soon!