138840457644

Names of 138840457644

• Cardinal: 138840457644 can be written as One hundred thirty-eight billion, eight hundred forty million, four hundred fifty-seven thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 1.38840457644 × 10¹¹

Factors of 138840457644

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 853

Divisors of 138840457644

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 227 241 243 252 324 373 378 454 482 486 567 681 723 746 756 908 964 972 1119 1134 1362 1446 1492 1589 1687 1701 2043 2169 2238 2268 2611 2724 2892 3178 3357 3374 3402 4086 4338 4476 4767 5061 5222 6129 6356 6507 6714 6748 6804 7833 8172 8676 9534 10071 10122 10444 12258 13014 13428 14301 15183 15666 18387 19068 19521 20142 20244 23499 24516 26028 28602 30213 30366 31332 36774 39042 40284 42903 45549 46998 54707 55161 57204 58563 60426 60732 70497 73548 78084 84671 85806 89893 90639 91098 93996 109414 110322 117126 120852 128709 136647 140994 164121 169342 171612 179786 181278 182196 211491 218828 220644 234252 254013 257418 269679 273294 281988 328242 338684 359572 362556 382949 386127 409941 422982 492363 508026 514836 539358 546588 592697 629251 634473 656484 762039 765898 772254 809037 819882 845964 984726 1016052 1078716 1148847 1185394 1258502 1268946 1477089 1524078 1531796 1544508 1618074 1639764 1778091 1887753 1969452 2286117 2297694 2370788 2427111 2517004 2537892 2954178 3048156 3236148 3446541 3556182 3775506 4431267 4572234 4595388 4854222 5334273 5663259 5908356 6858351 6893082 7112364 7281333 7551012 8862534 9144468 9708444 10339623 10668546 11326518 13293801 13716702 13786164 14562666 16002819 16989777 17725068 20405711 20575053 20679246 21337092 21843999 22653036 26587602 27433404 29125332 31018869 32005638 33979554 40811422 41150106 41358492 43687998 48008457 50969331 53175204 61217133 62037738 64011276 67959108 81622844 82300212 87375996 93056607 96016914 101938662 122434266 124075476 142839977 144025371 152907993 183651399 186113214 192033828 203877324 244868532 285679954 288050742 305815986 367302798 372226428 428519931 550954197 571359908 576101484 611631972 734605596 857039862 1101908394 1285559793 1652862591 1714079724 2203816788 2571119586 3305725182 3856679379 4958587773 5142239172 6611450364 7713358758 9917175546 11570038137 15426717516 19834351092 23140076274 34710114411 46280152548 69420228822 138840457644
• Sum of all divisors σ(n): 420640636416
• Sum of proper divisors (its aliquot sum) s(n): 281800178772
• 138840457644 is an abundant number, because the sum of its proper divisors (281800178772) is greater than itself. Its abundance is 142959721128

Bases of 138840457644

• Binary: 10000001010011100010010100000110101100₂
• Hexadecimal: 0x20538941AC
• Base-36: 1RS60UR0

Squares and roots of 138840457644

• 138840457644 squared (138840457644²) is 19276672678795358030736
• 138840457644 cubed (138840457644³) is 2676382056577538923610216858145984
• The square root of 138840457644 is 372613.0132510135
• The cube root of 138840457644 is 5178.1188247217

Scales and comparisons

• 138,840,457,644 seconds is equal to 4,414 years, 36 weeks, 1 day, 17 hours, 47 minutes, 24 seconds.
• To count from 1 to 138,840,457,644 would take you about eight thousand, eight hundred twenty-nine 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 138840457644 cubic inches would be around 431.5 feet tall.

Recreational maths with 138840457644

• 138840457644 backwards is 446754048831
• 138840457644 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138840457644's digits is 54
• More coming soon!