18131388445638

Names of 18131388445638

• Cardinal: 18131388445638 can be written as Eighteen trillion, one hundred thirty-one billion, three hundred eighty-eight million, four hundred forty-five thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8131388445638 × 10¹³

Factors of 18131388445638

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 98

Divisors of 18131388445638

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 6 9 13 18 19 26 27 38 39 54 57 61 78 81 114 117 122 162 171 183 234 243 247 342 351 361 366 486 494 513 549 702 722 741 793 1026 1053 1083 1098 1159 1482 1539 1586 1647 2106 2166 2223 2318 2379 3078 3159 3249 3294 3477 4446 4617 4693 4758 4941 6318 6498 6669 6859 6954 7137 9234 9386 9747 9882 10431 13338 13718 14079 14274 14823 15067 19494 20007 20577 20862 21411 22021 28158 29241 29646 30134 31293 40014 41154 42237 42822 44042 45201 58482 60021 61731 62586 64233 66063 84474 87723 89167 90402 93879 120042 123462 126711 128466 130321 132126 135603 175446 178334 185193 187758 192699 198189 253422 260642 267501 271206 281637 286273 370386 380133 385398 390963 396378 406809 418399 535002 555579 563274 572546 594567 760266 781926 802503 813618 836798 858819 1111158 1140399 1172889 1189134 1220427 1255197 1605006 1666737 1694173 1717638 1783701 2280798 2345778 2407509 2440854 2476099 2510394 2576457 3333474 3388346 3518667 3567402 3661281 3765591 4815018 4952198 5082519 5152914 5351103 5439187 7037334 7222527 7322562 7428297 7531182 7729371 7949581 10165038 10556001 10702206 10878374 11296773 14445054 14856594 15247557 15458742 15899162 16317561 21112002 21667581 22284891 22593546 23188113 23848743 30495114 31668003 32189287 32635122 33890319 43335162 44569782 45742671 46376226 47045881 47697486 48952683 63336006 64378574 66854673 67780638 69564339 71546229 91485342 94091762 96567861 97905366 101670957 103344553 133709346 137228013 139128678 141137643 143092458 146858049 151042039 193135722 200564019 203341914 206689106 214638687 274456026 282275286 289703583 293716098 302084078 310033659 401128038 411684039 423412929 429277374 440574147 453126117 579407166 601692057 611596453 620067318 643916061 823368078 846825858 869110749 881148294 906252234 930100977 1203384114 1223192906 1270238787 1287832122 1321722441 1359378351 1738221498 1834789359 1860201954 1931748183 1963546507 2540477574 2607332247 2643444882 2718756702 2790302931 2869798741 3669578718 3810716361 3863496366 3927093014 4078135053 5214664494 5504368077 5580605862 5739597482 5890639521 7621432722 7821996741 8156270106 8370908793 8609396223 11008736154 11432149083 11781279042 12234405159 15643993482 16513104231 16741817586 17218792446 17671918563 22864298166 24468810318 25112726379 25828188669 33026208462 35343837126 36703215477 37307383633 49539312693 50225452758 51656377338 53015755689 73406430954 74614767266 77484566007 99078625386 106031511378 111922150899 148617938079 154969132014 159047267067 223844301798 232453698021 297235876158 318094534134 335766452697 464907396042 477141801201 671532905394 697361094063 954283602402 1007299358091 1394722188126 2014598716182 3021898074273 6043796148546 9065694222819 18131388445638
• Sum of all divisors σ(n): 47070093894096
• Sum of proper divisors (its aliquot sum) s(n): 28938705448458
• 18131388445638 is an abundant number, because the sum of its proper divisors (28938705448458) is greater than itself. Its abundance is 10807317002820

Bases of 18131388445638

• Binary: 100000111110110001010111101111011001111000110₂
• Hexadecimal: 0x107D8AF7B3C6
• Base-36: 6FDG0JIDI

Squares and roots of 18131388445638

• 18131388445638 squared (18131388445638²) is 328747246966615169681227044
• 18131388445638 cubed (18131388445638³) is 5960644035185788331884614837259729434072
• The square root of 18131388445638 is 4258096.8102707575
• The cube root of 18131388445638 is 26271.0251848199

Scales and comparisons

• 18,131,388,445,638 seconds is equal to 576,522 years, 3 weeks, 3 days, 22 hours, 27 minutes, 18 seconds.
• To count from 1 to 18,131,388,445,638 would take you about one million, four hundred forty-one thousand, three hundred five 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 18131388445638 cubic inches would be around 2189.3 feet tall.

Recreational maths with 18131388445638

• 18131388445638 backwards is 83654488313181
• The number of decimal digits it has is: 14
• The sum of 18131388445638's digits is 63
• More coming soon!