18081531371520

Names of 18081531371520

• Cardinal: 18081531371520 can be written as Eighteen trillion, eighty-one billion, five hundred thirty-one million, three hundred seventy-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.808153137152 × 10¹³

Factors of 18081531371520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 732156

Divisors of 18081531371520

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 67 72 80 90 96 120 128 134 144 160 180 192 201 240 256 268 288 320 335 360 384 402 480 512 536 576 603 640 670 720 768 804 960 1005 1024 1072 1152 1206 1280 1340 1440 1536 1608 1920 2010 2048 2144 2304 2412 2560 2680 2880 3015 3072 3216 3840 4020 4096 4288 4608 4824 5120 5360 5760 6030 6144 6432 7680 8040 8192 8576 9216 9648 10240 10720 11520 12060 12288 12864 15360 16080 17152 18432 19296 20480 21440 23040 24120 24576 25728 30720 32160 34304 36864 38592 40960 42880 46080 48240 51456 61440 64320 68608 73728 77184 85760 92160 96480 102912 122880 128640 137216 154368 171520 184320 192960 205824 257280 274432 308736 343040 368640 385920 411648 514560 548864 617472 686080 732079 771840 823296 1029120 1234944 1372160 1464158 1543680 1646592 2058240 2196237 2469888 2744320 2928316 3087360 3660395 4116480 4392474 4939776 5856632 6174720 6588711 7320790 8232960 8784948 10981185 11713264 12349440 13177422 14641580 17569896 21962370 23426528 24698880 26354844 29283160 32943555 35139792 43924740 46853056 49049293 52709688 58566320 65887110 70279584 87849480 93706112 98098586 105419376 117132640 131774220 140559168 147147879 175698960 187412224 196197172 210838752 234265280 245246465 263548440 281118336 294295758 351397920 374824448 392394344 421677504 441443637 468530560 490492930 527096880 562236672 588591516 702795840 735739395 749648896 784788688 843355008 882887274 937061120 980985860 1054193760 1124473344 1177183032 1405591680 1471478790 1499297792 1569577376 1686710016 1765774548 1874122240 1961971720 2108387520 2207218185 2248946688 2354366064 2811183360 2942957580 2998595584 3139154752 3373420032 3531549096 3748244480 3923943440 4216775040 4414436370 4497893376 4708732128 5622366720 5885915160 5997191168 6278309504 6746840064 7063098192 7496488960 7847886880 8433550080 8828872740 8995786752 9417464256 11244733440 11771830320 12556619008 13493680128 14126196384 14992977920 15695773760 16867100160 17657745480 17991573504 18834928512 22489466880 23543660640 25113238016 26987360256 28252392768 29985955840 31391547520 33734200320 35315490960 37669857024 44978933760 47087321280 50226476032 53974720512 56504785536 62783095040 67468400640 70630981920 75339714048 89957867520 94174642560 100452952064 113009571072 125566190080 134936801280 141261963840 150679428096 188349285120 200905904128 226019142144 251132380160 269873602560 282523927680 301358856192 376698570240 401811808256 452038284288 502264760320 565047855360 602717712384 753397140480 904076568576 1004529520640 1130095710720 1205435424768 1506794280960 1808153137152 2009059041280 2260191421440 3013588561920 3616306274304 4520382842880 6027177123840 9040765685760 18081531371520
• Sum of all divisors σ(n): 63614407858560
• Sum of proper divisors (its aliquot sum) s(n): 45532876487040
• 18081531371520 is an abundant number, because the sum of its proper divisors (45532876487040) is greater than itself. Its abundance is 27451345115520

Bases of 18081531371520

• Binary: 100000111000111101111010000010010000000000000₂
• Hexadecimal: 0x1071EF412000
• Base-36: 6EQJGXDS0

Squares and roots of 18081531371520

• 18081531371520 squared (18081531371520²) is 326941776739261932267110400
• 18081531371520 cubed (18081531371520³) is 5911607992771452439578250053899255808000
• The square root of 18081531371520 is 4252238.3954242263
• The cube root of 18081531371520 is 26246.9233565521

Scales and comparisons

• 18,081,531,371,520 seconds is equal to 574,936 years, 39 weeks, 6 days, 11 hours, 12 minutes.
• To count from 1 to 18,081,531,371,520 would take you about one million, four hundred thirty-seven thousand, three hundred forty-one 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 18081531371520 cubic inches would be around 2187.2 feet tall.

Recreational maths with 18081531371520

• 18081531371520 backwards is 02517313518081
• 18081531371520 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18081531371520's digits is 45
• More coming soon!