19809357987840

Names of 19809357987840

• Cardinal: 19809357987840 can be written as Nineteen trillion, eight hundred nine billion, three hundred fifty-seven million, nine hundred eighty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.980935798784 × 10¹³

Factors of 19809357987840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 77

Divisors of 19809357987840

• Number of divisors d(n): 340
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 67 80 96 120 128 134 160 192 201 240 256 268 320 335 384 402 480 512 536 640 670 768 804 960 1005 1024 1072 1280 1340 1536 1608 1920 2010 2048 2144 2560 2680 3072 3216 3840 4020 4096 4288 4489 5120 5360 6144 6432 7680 8040 8192 8576 8978 10240 10720 12288 12864 13467 15360 16080 16384 17152 17956 20480 21440 22445 24576 25728 26934 30720 32160 32768 34304 35912 40960 42880 44890 49152 51456 53868 61440 64320 65536 67335 68608 71824 81920 85760 89780 98304 102912 107736 122880 128640 134670 137216 143648 163840 171520 179560 196608 205824 215472 245760 257280 269340 274432 287296 300763 327680 343040 359120 411648 430944 491520 514560 538680 548864 574592 601526 686080 718240 823296 861888 902289 983040 1029120 1077360 1097728 1149184 1203052 1372160 1436480 1503815 1646592 1723776 1804578 2058240 2154720 2195456 2298368 2406104 2744320 2872960 3007630 3293184 3447552 3609156 4116480 4309440 4390912 4511445 4596736 4812208 5488640 5745920 6015260 6586368 6895104 7218312 8232960 8618880 9022890 9193472 9624416 10977280 11491840 12030520 13172736 13790208 14436624 16465920 17237760 18045780 18386944 19248832 20151121 21954560 22983680 24061040 27580416 28873248 32931840 34475520 36091560 36773888 38497664 40302242 45967360 48122080 55160832 57746496 60453363 65863680 68951040 72183120 73547776 76995328 80604484 91934720 96244160 100755605 110321664 115492992 120906726 137902080 144366240 147095552 153990656 161208968 183869440 192488320 201511210 220643328 230985984 241813452 275804160 288732480 294191104 302266815 307981312 322417936 367738880 384976640 403022420 441286656 461971968 483626904 551608320 577464960 604533630 615962624 644835872 735477760 769953280 806044840 882573312 923943936 967253808 1103216640 1154929920 1209067260 1231925248 1289671744 1470955520 1539906560 1612089680 1847887872 1934507616 2206433280 2309859840 2418134520 2463850496 2579343488 3079813120 3224179360 3695775744 3869015232 4412866560 4619719680 4836269040 4927700992 5158686976 6159626240 6448358720 7391551488 7738030464 9239439360 9672538080 9855401984 10317373952 12319252480 12896717440 14783102976 15476060928 18478878720 19345076160 19710803968 20634747904 24638504960 25793434880 29566205952 30952121856 36957757440 38690152320 41269495808 49277009920 51586869760 59132411904 61904243712 73915514880 77380304640 82538991616 98554019840 103173739520 123808487424 147831029760 154760609280 165077983232 206347479040 247616974848 295662059520 309521218560 330155966464 412694958080 495233949696 619042437120 660311932928 825389916160 990467899392 1238084874240 1320623865856 1650779832320 1980935798784 2476169748480 3301559664640 3961871597568 4952339496960 6603119329280 9904678993920 19809357987840
• Sum of all divisors σ(n): 64349908279464
• Sum of proper divisors (its aliquot sum) s(n): 44540550291624
• 19809357987840 is an abundant number, because the sum of its proper divisors (44540550291624) is greater than itself. Its abundance is 24731192303784

Bases of 19809357987840

• Binary: 100100000010000111001101111110000000000000000₂
• Hexadecimal: 0x120439BF0000
• Base-36: 70SAKA7EO

Squares and roots of 19809357987840

• 19809357987840 squared (19809357987840²) is 392410663890400413587865600
• 19809357987840 cubed (19809357987840³) is 7773403319250900883202825097056354304000
• The square root of 19809357987840 is 4450770.4937280241
• The cube root of 19809357987840 is 27057.6536610367

Scales and comparisons

• 19,809,357,987,840 seconds is equal to 629,876 years, 16 weeks, 17 hours, 4 minutes.
• To count from 1 to 19,809,357,987,840 would take you about one million, five hundred seventy-four thousand, six hundred ninety 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 19809357987840 cubic inches would be around 2254.8 feet tall.

Recreational maths with 19809357987840

• 19809357987840 backwards is 04878975390891
• The number of decimal digits it has is: 14
• The sum of 19809357987840's digits is 78
• More coming soon!