138489081808

Names of 138489081808

• Cardinal: 138489081808 can be written as One hundred thirty-eight billion, four hundred eighty-nine million, eighty-one thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.38489081808 × 10¹¹

Factors of 138489081808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 579

Divisors of 138489081808

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 44 49 56 71 77 79 88 98 112 142 154 158 176 196 284 308 316 343 392 409 497 539 553 568 616 632 686 781 784 818 869 994 1078 1106 1136 1232 1264 1372 1562 1636 1738 1988 2156 2212 2744 2863 3124 3272 3476 3479 3773 3871 3976 4312 4424 4499 5467 5488 5609 5726 6083 6248 6544 6952 6958 7546 7742 7952 8624 8848 8998 10934 11218 11452 12166 12496 13904 13916 15092 15484 17996 20041 21868 22436 22904 24332 24353 27097 27832 29039 30184 30968 31493 32311 35992 38269 39263 40082 42581 43736 44872 45808 48664 48706 54194 55664 58078 60368 61699 61936 62986 64622 71984 76538 78526 80164 85162 87472 89744 97328 97412 108388 116156 123398 125972 129244 140287 153076 157052 160328 170324 194824 203273 216776 220451 226177 232312 246796 251944 258488 267883 274841 280574 298067 306152 314104 319429 320656 340648 355421 389648 406546 431893 433552 440902 452354 464624 493592 503888 516976 535766 549682 561148 596134 612304 628208 638858 681296 710842 813092 863786 881804 904708 987184 1071532 1099364 1122296 1192268 1277716 1421684 1422911 1543157 1583239 1626184 1727572 1763608 1809416 1923887 2143064 2198728 2236003 2244592 2294081 2384536 2487947 2555432 2843368 2845822 3023251 3086314 3166478 3252368 3455144 3527216 3618832 3847774 4286128 4397456 4472006 4588162 4769072 4975894 5110864 5686736 5691644 6046502 6172628 6332956 6910288 7695548 8944012 9176324 9951788 9960377 11082673 11383288 12093004 12345256 12665912 15391096 15652021 16058567 17415629 17888024 18352648 19903576 19920754 21162757 22165346 22766576 24186008 24690512 25234891 25331824 30782192 31304042 32117134 34831258 35776048 36705296 39807152 39841508 42325514 44330692 48372016 50469782 62608084 64234268 69662516 79683016 84651028 88661384 100939564 109564147 112409969 121909403 125216168 128468536 139325032 159366032 169302056 176644237 177322768 201879128 219128294 224819938 243818806 250432336 256937072 278650064 338604112 353288474 403758256 438256588 449639876 487637612 706576948 786869783 876513176 899279752 975275224 1236509659 1413153896 1573739566 1753026352 1798559504 1950550448 2473019318 2826307792 3147479132 4946038636 6294958264 8655567613 9892077272 12589916528 17311135226 19784154544 34622270452 69244540904 138489081808
• Sum of all divisors σ(n): 351406080000
• Sum of proper divisors (its aliquot sum) s(n): 212916998192
• 138489081808 is an abundant number, because the sum of its proper divisors (212916998192) is greater than itself. Its abundance is 74427916384

Bases of 138489081808

• Binary: 10000000111110100101111010111111010000₂
• Hexadecimal: 0x203E97AFD0
• Base-36: 1RMCTNF4

Squares and roots of 138489081808

• 138489081808 squared (138489081808²) is 19179225780022916548864
• 138489081808 cubed (138489081808³) is 2656113368063696302050383525466112
• The square root of 138489081808 is 372141.2121869869
• The cube root of 138489081808 is 5173.7468932785

Scales and comparisons

• 138,489,081,808 seconds is equal to 4,403 years, 27 weeks, 1 day, 21 hours, 23 minutes, 28 seconds.
• To count from 1 to 138,489,081,808 would take you about eight thousand, eight hundred 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 138489081808 cubic inches would be around 431.1 feet tall.

Recreational maths with 138489081808

• 138489081808 backwards is 808180984831
• The number of decimal digits it has is: 12
• The sum of 138489081808's digits is 58
• More coming soon!