138668625888

Names of 138668625888

• Cardinal: 138668625888 can be written as One hundred thirty-eight billion, six hundred sixty-eight million, six hundred twenty-five thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38668625888 × 10¹¹

Factors of 138668625888

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 228

Divisors of 138668625888

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 83 96 104 127 156 166 208 249 254 312 332 381 416 498 508 624 664 762 996 1016 1079 1248 1328 1524 1651 1992 2032 2158 2656 3048 3237 3302 3984 4064 4316 4953 6096 6474 6604 6889 7968 8632 9906 10541 12192 12948 13208 13778 16129 17264 19812 20667 21082 25896 26416 27556 31623 32258 34528 39624 41334 42164 48387 51792 52832 55112 63246 64516 79248 82668 84328 89557 96774 103584 110224 126492 129032 137033 158496 165336 168656 179114 193548 209677 220448 252984 258064 268671 274066 330672 337312 358228 387096 411099 419354 505968 516128 537342 548132 629031 661344 716456 774192 822198 838708 874903 1011936 1074684 1096264 1258062 1338707 1432912 1548384 1644396 1677416 1749806 2149368 2192528 2516124 2624709 2677414 2865824 3288792 3354832 3499612 4016121 4298736 4385056 5032248 5249418 5354828 6577584 6709664 6999224 8032242 8597472 10064496 10498836 10709656 11373739 13155168 13998448 16064484 17403191 20128992 20997672 21419312 22747478 27996896 32128968 34121217 34806382 41995344 42838624 45494956 52209573 64257936 68242434 69612764 83990688 90989912 104419146 111112681 128515872 136484868 139225528 181979824 208838292 222225362 272969736 278451056 333338043 363959648 417676584 444450724 545939472 556902112 666676086 835353168 888901448 1091878944 1333352172 1444464853 1670706336 1777802896 2666704344 2888929706 3555605792 4333394559 5333408688 5777859412 8666789118 10666817376 11555718824 17333578236 23111437648 34667156472 46222875296 69334312944 138668625888
• Sum of all divisors σ(n): 399934295208
• Sum of proper divisors (its aliquot sum) s(n): 261265669320
• 138668625888 is an abundant number, because the sum of its proper divisors (261265669320) is greater than itself. Its abundance is 122597043432

Bases of 138668625888

• Binary: 10000001001001010010110100111111100000₂
• Hexadecimal: 0x20494B4FE0
• Base-36: 1RPBPWIO

Squares and roots of 138668625888

• 138668625888 squared (138668625888²) is 19228987805666103788544
• 138668625888 cubed (138668625888³) is 2666457316228826992896187396227072
• The square root of 138668625888 is 372382.3651678473
• The cube root of 138668625888 is 5175.9817613565

Scales and comparisons

• 138,668,625,888 seconds is equal to 4,409 years, 12 weeks, 22 hours, 44 minutes, 48 seconds.
• To count from 1 to 138,668,625,888 would take you about eight thousand, eight hundred eighteen 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 138668625888 cubic inches would be around 431.3 feet tall.

Recreational maths with 138668625888

• 138668625888 backwards is 888526866831
• The number of decimal digits it has is: 12
• The sum of 138668625888's digits is 69
• More coming soon!