18638009987072

Names of 18638009987072

• Cardinal: 18638009987072 can be written as Eighteen trillion, six hundred thirty-eight billion, nine million, nine hundred eighty-seven thousand and seventy-two.

Scientific notation

• Scientific notation: 1.8638009987072 × 10¹³

Factors of 18638009987072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2980

Divisors of 18638009987072

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 601 617 896 1024 1202 1234 1753 1792 2048 2404 2468 3506 3584 4096 4207 4319 4808 4936 7012 7168 8414 8638 9616 9872 12271 14024 14336 16828 17276 19232 19744 24542 28048 28672 33656 34552 38464 39488 49084 56096 67312 69104 76928 78976 98168 112192 134624 138208 153856 157952 196336 224384 269248 276416 307712 315904 370817 392672 448768 538496 552832 615424 631808 741634 785344 897536 1053553 1076992 1081601 1105664 1230848 1263616 1483268 1570688 1795072 2107106 2153984 2163202 2211328 2461696 2527232 2595719 2966536 3141376 3590144 4214212 4307968 4326404 4422656 5191438 5933072 6282752 7180288 7374871 7571207 8428424 8615936 8652808 8845312 10382876 11866144 12565504 14749742 15142414 16856848 17231872 17305616 17690624 20765752 23732288 25131008 29499484 30284828 33713696 34611232 41531504 47464576 50262016 58998968 60569656 67427392 69222464 83063008 94929152 117997936 121139312 134854784 138444928 166126016 189858304 235995872 242278624 269709568 276889856 332252032 379716608 471991744 484557248 539419136 553779712 650042201 664504064 759433216 943983488 969114496 1078838272 1107559424 1300084402 1329008128 1518866432 1887966976 1938228992 2157676544 2215118848 2600168804 2658016256 3775933952 3876457984 4315353088 4430237696 4550295407 5200337608 5316032512 7551867904 7752915968 9100590814 10400675216 10632065024 15103735808 15505831936 18201181628 20801350432 30207471616 31011663872 36402363256 41602700864 72804726512 83205401728 145609453024 166410803456 291218906048 332821606912 582437812096 665643213824 1164875624192 1331286427648 2329751248384 2662572855296 4659502496768 9319004993536 18638009987072
• Sum of all divisors σ(n): 42760371364032
• Sum of proper divisors (its aliquot sum) s(n): 24122361376960
• 18638009987072 is an abundant number, because the sum of its proper divisors (24122361376960) is greater than itself. Its abundance is 5484351389888

Bases of 18638009987072

• Binary: 100001111001101111111111101101111000000000000₂
• Hexadecimal: 0x10F37FF6F000
• Base-36: 6LU6LXDKW

Squares and roots of 18638009987072

• 18638009987072 squared (18638009987072²) is 347375416278195613607133184
• 18638009987072 cubed (18638009987072³) is 6474386477856303246721371462010822197248
• The square root of 18638009987072 is 4317176.1589112853
• The cube root of 18638009987072 is 26513.4665088665

Scales and comparisons

• 18,638,009,987,072 seconds is equal to 592,631 years, 3 weeks, 3 days, 4 hours, 24 minutes, 32 seconds.
• To count from 1 to 18,638,009,987,072 would take you about one million, four hundred eighty-one thousand, five hundred seventy-seven 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 18638009987072 cubic inches would be around 2209.5 feet tall.

Recreational maths with 18638009987072

• 18638009987072 backwards is 27078990083681
• The number of decimal digits it has is: 14
• The sum of 18638009987072's digits is 68
• More coming soon!