20689749947021472

Names of 20689749947021472

• Cardinal: 20689749947021472 can be written as Twenty quadrillion, six hundred eighty-nine trillion, seven hundred forty-nine billion, nine hundred forty-seven million, twenty-one thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.0689749947021472 × 10¹⁶

Factors of 20689749947021472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 6154

Divisors of 20689749947021472

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 72 87 96 116 144 174 232 261 269 288 348 464 522 538 696 807 928 1044 1076 1392 1614 2088 2152 2421 2784 3228 4176 4304 4842 5851 6456 7801 8352 8608 9684 11702 12912 15602 17553 19368 23403 23404 25824 31204 35106 38736 46806 46808 52659 62408 70209 70212 72361 77472 93612 93616 105318 124816 140418 140424 144722 169679 187224 187232 210636 217083 249632 280836 280848 289444 339358 374448 421272 434166 509037 561672 561696 578888 651249 678716 748896 842544 868332 1018074 1123344 1157776 1302498 1357432 1527111 1573919 1685088 1736664 2036148 2098469 2246688 2315552 2604996 2714864 3054222 3147838 3473328 4072296 4196938 4721757 5209992 5429728 6108444 6295407 6295676 6946656 8144592 8393876 9443514 10419984 12216888 12590814 12591352 14165271 16289184 16787752 18886221 18887028 20839968 24433776 25181628 25182704 28330542 33575504 34234201 37772442 37774056 45643651 48867552 50363256 50365408 56661084 67151008 68468402 75544884 75548112 91287302 100726512 102702603 113322168 136930953 136936804 151089768 151096224 182574604 201453024 205405206 226644336 273861906 273873608 302179536 308107809 365149208 410792859 410810412 423384211 453288672 547723812 547747216 604359072 616215618 730298416 821585718 821620824 846768422 992791829 1095447624 1095494432 1232431236 1270152633 1460596832 1643171436 1643241648 1693536844 1985583658 2190895248 2464862472 2540305266 2978375487 3286342872 3286483296 3387073688 3810457899 3971167316 4381790496 4929724944 5080610532 5956750974 6572685744 6774147376 7620915798 7942334632 8935126461 9209000069 9859449888 10161221064 11913501948 12278142119 13145371488 13548294752 15241831596 15884669264 17870252922 18418000138 20322442128 23827003896 24556284238 27627000207 30483663192 31769338528 35740505844 36834426357 36836000276 40644884256 47654007792 49112568476 55254000414 60967326384 71481011688 73668852714 73672000552 82881000621 95308015584 98225136952 110503279071 110508000828 121934652768 142962023376 147337705428 147344001104 165762001242 196450273904 221006558142 221016001656 267061002001 285924046752 294675410856 294688002208 331524002484 392900547808 442013116284 442032003312 534122004002 589350821712 663048004968 801183006003 884026232568 884064006624 1068244008004 1178701643424 1326096009936 1602366012006 1768052465136 2136488016008 2403549018009 2477221018561 2652192019872 3204732024012 3536104930272 4272976032016 4807098036018 4954442037122 6409464048024 7431663055683 8545952064032 9614196072036 9908884074244 12818928096048 14863326111366 19228392144072 19817768148488 22294989167049 25637856192096 29726652222732 38456784288144 39635536296976 44589978334098 59453304445464 71839409538269 76913568576288 79271072593952 89179956668196 118906608890928 143678819076538 178359913336392 215518228614807 237813217781856 287357638153076 356719826672784 431036457229614 574715276306152 646554685844421 713439653345568 862072914459228 1149430552612304 1293109371688842 1724145828918456 2298861105224608 2586218743377684 3448291657836912 5172437486755368 6896583315673824 10344874973510736 20689749947021472
• Sum of all divisors σ(n): 61102869841614510
• Sum of proper divisors (its aliquot sum) s(n): 40413119894593038
• 20689749947021472 is an abundant number, because the sum of its proper divisors (40413119894593038) is greater than itself. Its abundance is 19723369947571566

Bases of 20689749947021472

• Binary: 1001001100000010011011111001100000101010111100010100000₂
• Hexadecimal: 0x498137CC1578A0
• Base-36: 5NPWJWSXYG0

Squares and roots of 20689749947021472

• 20689749947021472 squared (20689749947021472²) is 428065752870275003430724429046784
• 20689749947021472 cubed (20689749947021472³) is 8856573387769478777951886118915969039460940546048
• The square root of 20689749947021472 is 143839319.8920985999
• The cube root of 20689749947021472 is 274527.0104001323

Scales and comparisons

• 20,689,749,947,021,472 seconds is equal to 657,870,050 years, 37 weeks, 1 day, 21 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,689,749,947,021,472 would take you about one billion, nine hundred seventy-three million, six hundred ten thousand, one hundred fifty-two 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 20689749947021472 cubic inches would be around 22877.3 feet tall.

Recreational maths with 20689749947021472

• 20689749947021472 backwards is 27412074994798602
• The number of decimal digits it has is: 17
• The sum of 20689749947021472's digits is 81
• More coming soon!