20818731791872

Names of 20818731791872

• Cardinal: 20818731791872 can be written as Twenty trillion, eight hundred eighteen billion, seven hundred thirty-one million, seven hundred ninety-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.0818731791872 × 10¹³

Factors of 20818731791872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 110

Divisors of 20818731791872

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 4 7 8 14 16 19 28 29 32 38 53 56 58 64 76 106 112 116 128 133 152 203 212 224 232 256 266 304 361 371 406 424 448 464 512 532 551 608 722 742 812 841 848 896 928 1007 1064 1102 1216 1444 1484 1537 1624 1682 1696 1792 1856 2014 2128 2204 2432 2527 2888 2968 3074 3248 3364 3392 3584 3712 3857 4028 4256 4408 4864 5054 5776 5887 5936 6148 6496 6728 6784 6859 7049 7424 7714 8056 8512 8816 9728 10108 10469 10759 11552 11774 11872 12296 12992 13456 13568 13718 14098 14848 15428 15979 16112 17024 17632 19133 20216 20938 21518 23104 23548 23744 24592 25984 26912 27136 27436 28196 29203 30856 31958 32224 34048 35264 38266 40432 41876 43036 44573 46208 47096 47488 48013 49184 51968 53824 54872 56392 58406 61712 63916 64448 68096 70528 73283 76532 80864 83752 86072 89146 92416 94192 94976 96026 98368 103936 107648 109744 111853 112784 116812 123424 127832 128896 130321 133931 141056 146566 153064 161728 167504 172144 178292 184832 188384 189952 192052 196736 198911 204421 215296 219488 223706 225568 233624 246848 255664 257792 260642 267862 282112 293132 303601 306128 312011 323456 335008 344288 356584 363527 376768 384104 393472 397822 408842 430592 438976 447412 451136 467248 493696 511328 515584 521284 535724 554857 586264 607202 612256 624022 646912 670016 688576 713168 727054 753536 768208 786944 795644 817684 846887 877952 894824 902272 912247 934496 987392 1022656 1042568 1071448 1109714 1172528 1214404 1224512 1248044 1293824 1340032 1377152 1392377 1426336 1454108 1507072 1536416 1591288 1635368 1693774 1755904 1789648 1804544 1824494 1868992 1974784 2045312 2085136 2125207 2142896 2219428 2345056 2428808 2449024 2496088 2544689 2680064 2754304 2784754 2852672 2908216 3014144 3072832 3182576 3270736 3387548 3511808 3579296 3609088 3648988 3737984 3779309 3883999 4090624 4170272 4250414 4285792 4438856 4690112 4857616 4898048 4992176 5089378 5360128 5508608 5569508 5705344 5768419 5816432 5928209 6145664 6365152 6541472 6775096 6907013 7158592 7297976 7475968 7558618 7767998 8181248 8340544 8500828 8571584 8877712 9380224 9715232 9796096 9984352 10178756 10542283 11139016 11410688 11536838 11632864 11856418 12291328 12730304 13082944 13550192 13814026 14317184 14595952 14951936 15117236 15535996 16090853 16681088 17001656 17143168 17755424 18760448 19430464 19968704 20357512 21084566 22278032 22821376 23073676 23265728 23712836 24582656 25460608 26165888 26455163 27100384 27628052 28634368 29191904 30234472 31071992 32181706 33362176 34003312 34286336 35510848 37520896 38860928 39937408 40378933 40715024 42169132 44556064 46147352 46531456 47425672 48349091 50921216 52331776 52910326 54200768 55256104 57268736 58383808 60468944 62143984 64363412 66724352 68006624 68572672 71021696 73795981 77721856 79874816 80757866 81430048 84338264 89112128 92294704 93062912 94851344 96698182 101842432 104663552 105820652 108401536 109599961 110512208 112635971 116767616 120937888 124287968 128726824 136013248 142043392 147591962 155443712 159749632 161515732 162860096 168676528 178224256 184589408 186125824 189702688 193396364 200303377 211641304 216803072 219199922 221024416 225271942 233535232 241875776 248575936 257453648 272026496 284086784 295183924 305726207 323031464 325720192 337353056 356448512 369178816 379405376 386792728 400606754 423282608 433606144 438399844 442048832 450543884 467070464 483751552 497151872 514907296 544052992 590367848 611452414 646062928 651440384 674706112 712897024 738357632 758810752 767199727 773585456 801213508 846565216 876799688 884097664 901087768 967503104 994303744 1029814592 1088105984 1180735696 1222904828 1292125856 1302880768 1349412224 1402123639 1476715264 1517621504 1534399454 1547170912 1602427016 1693130432 1753599376 1768195328 1802175536 1935006208 1988607488 2059629184 2140083449 2361471392 2445809656 2584251712 2698824448 2804247278 2953430528 3035243008 3068798908 3094341824 3204854032 3386260864 3507198752 3536390656 3604351072 4119258368 4280166898 4722942784 4891619312 5168503424 5397648896 5608494556 5808797933 6137597816 6188683648 6409708064 6772521728 7014397504 7208702144 8238516736 8560333796 9445885568 9783238624 10337006848 11216989112 11617595866 12275195632 12377367296 12819416128 13545043456 14028795008 14417404288 17120667592 18891771136 19566477248 20674013696 22433978224 23235191732 24550391264 24754734592 25638832256 28057590016 28834808576 34241335184 37783542272 39132954496 40661585531 44867956448 46470383464 49100782528 51277664512 56115180032 57669617152 68482670368 78265908992 81323171062 89735912896 92940766928 98201565056 102555329024 136965340736 156531817984 162646342124 179471825792 185881533856 196403130112 273930681472 325292684248 358943651584 371763067712 392806260224 547861362944 650585368496 717887303168 743526135424 1095722725888 1301170736992 1487052270848 2602341473984 2974104541696 5204682947968 10409365895936 20818731791872
• Sum of all divisors σ(n): 52950840701616
• Sum of proper divisors (its aliquot sum) s(n): 32132108909744
• 20818731791872 is an abundant number, because the sum of its proper divisors (32132108909744) is greater than itself. Its abundance is 11313377117872

Bases of 20818731791872

• Binary: 100101110111100111101000111001111011000000000₂
• Hexadecimal: 0x12EF3D1CF600
• Base-36: 7DNZRDV5S

Squares and roots of 20818731791872

• 20818731791872 squared (20818731791872²) is 433419593421901935925264384
• 20818731791872 cubed (20818731791872³) is 9023246268792786194595645119387662286848
• The square root of 20818731791872 is 4562754.8467863141
• The cube root of 20818731791872 is 27509.6304746801

Scales and comparisons

• 20,818,731,791,872 seconds is equal to 661,971 years, 14 weeks, 1 day, 21 hours, 17 minutes, 52 seconds.
• To count from 1 to 20,818,731,791,872 would take you about one million, six hundred fifty-four thousand, nine hundred twenty-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 20818731791872 cubic inches would be around 2292.5 feet tall.

Recreational maths with 20818731791872

• 20818731791872 backwards is 27819713781802
• 20818731791872 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20818731791872's digits is 64
• More coming soon!