138996391560

Names of 138996391560

• Cardinal: 138996391560 can be written as One hundred thirty-eight billion, nine hundred ninety-six million, three hundred ninety-one thousand, five hundred sixty.

Scientific notation

• Scientific notation: 1.3899639156 × 10¹¹

Factors of 138996391560

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7968

Divisors of 138996391560

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 83 104 120 130 139 156 166 195 249 260 278 312 332 390 415 417 498 520 556 664 695 780 830 834 996 1079 1112 1245 1390 1560 1660 1668 1807 1992 2085 2158 2490 2780 3237 3320 3336 3614 4170 4316 4980 5395 5421 5560 6474 7228 7723 8340 8632 9035 9960 10790 10842 11537 12948 14456 15446 16185 16680 18070 21580 21684 23074 23169 25896 27105 30892 32370 34611 36140 38615 43160 43368 46148 46338 54210 57685 61784 64740 69222 72280 77230 92296 92676 100399 108420 115370 115845 129480 138444 149981 154460 173055 185352 200798 216840 230740 231690 276888 299962 301197 308920 346110 401596 449943 461480 463380 501995 599924 602394 641009 692220 749905 803192 899886 926760 1003990 1073497 1199848 1204788 1282018 1384440 1499810 1505985 1799772 1923027 2007980 2146994 2249715 2409576 2564036 2999620 3011970 3205045 3220491 3599544 3846054 4015960 4293988 4499430 5128072 5367485 5999240 6023940 6410090 6440982 7692108 8333117 8587976 8998860 9615135 10734970 12047880 12820180 12881964 13955461 15384216 16102455 16666234 17997720 19230270 21469940 24999351 25640360 25763928 27910922 32204910 33332468 38460540 41665585 41866383 42939880 49998702 55821844 64409820 66664936 69777305 76921080 83331170 83732766 89100251 99997404 111643688 124996755 128819640 139554610 166662340 167465532 178200502 199994808 209331915 249993510 267300753 279109220 333324680 334931064 356401004 418663830 445501255 499987020 534601506 558218440 712802008 837327660 891002510 999974040 1069203012 1158303263 1336503765 1674655320 1782005020 2138406024 2316606526 2673007530 3474909789 3564010040 4633213052 5346015060 5791516315 6949819578 9266426104 10692030120 11583032630 13899639156 17374548945 23166065260 27799278312 34749097890 46332130520 69498195780 138996391560
• Sum of all divisors σ(n): 457804569600
• Sum of proper divisors (its aliquot sum) s(n): 318808178040
• 138996391560 is an abundant number, because the sum of its proper divisors (318808178040) is greater than itself. Its abundance is 179811786480

Bases of 138996391560

• Binary: 10000001011100110101001001111010001000₂
• Hexadecimal: 0x205CD49E88
• Base-36: 1RUQV24O

Squares and roots of 138996391560

• 138996391560 squared (138996391560²) is 19319996866700839233600
• 138996391560 cubed (138996391560³) is 2685409849421922975494075908416000
• The square root of 138996391560 is 372822.1983197889
• The cube root of 138996391560 is 5180.0566418479

Scales and comparisons

• 138,996,391,560 seconds is equal to 4,419 years, 34 weeks, 12 hours, 46 minutes.
• To count from 1 to 138,996,391,560 would take you about eight thousand, eight hundred thirty-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 138996391560 cubic inches would be around 431.7 feet tall.

Recreational maths with 138996391560

• 138996391560 backwards is 065193699831
• 138996391560 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138996391560's digits is 60
• More coming soon!