138739070280

Names of 138739070280

• Cardinal: 138739070280 can be written as One hundred thirty-eight billion, seven hundred thirty-nine million, seventy thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3873907028 × 10¹¹

Factors of 138739070280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 238

Divisors of 138739070280

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 197 248 310 372 394 465 591 620 744 788 930 961 985 1182 1240 1576 1860 1922 1970 2364 2883 2955 3720 3844 3940 4728 4805 5766 5910 6107 7688 7880 9610 11532 11820 12214 14415 18321 19220 23064 23640 24428 28830 29791 30535 36642 38440 38809 48856 57660 59582 61070 73284 77618 89373 91605 115320 116427 119164 122140 146568 148955 155236 178746 183210 189317 194045 232854 238328 244280 297910 310472 357492 366420 378634 388090 446865 465708 567951 582135 595820 714984 732840 757268 776180 893730 931416 946585 1135902 1164270 1191640 1203079 1514536 1552360 1787460 1893170 2271804 2328540 2406158 2839755 3574920 3609237 3786340 4543608 4657080 4812316 5679510 5868827 6015395 7218474 7572680 9624632 11359020 11737654 12030790 14436948 17606481 18046185 22718040 23475308 24061580 28873896 29344135 35212962 36092370 37295449 46950616 48123160 58688270 70425924 72184740 74590898 88032405 111886347 117376540 140851848 144369480 149181796 176064810 186477245 223772694 234753080 298363592 352129620 372954490 447545388 559431735 704259240 745908980 895090776 1118863470 1156158919 1491817960 2237726940 2312317838 3468476757 4475453880 4624635676 5780794595 6936953514 9249271352 11561589190 13873907028 17342383785 23123178380 27747814056 34684767570 46246356760 69369535140 138739070280
• Sum of all divisors σ(n): 432284935680
• Sum of proper divisors (its aliquot sum) s(n): 293545865400
• 138739070280 is an abundant number, because the sum of its proper divisors (293545865400) is greater than itself. Its abundance is 154806795120

Bases of 138739070280

• Binary: 10000001001101011111100011010101001000₂
• Hexadecimal: 0x204D7E3548
• Base-36: 1RQHNRRC

Squares and roots of 138739070280

• 138739070280 squared (138739070280²) is 19248529622158779278400
• 138739070280 cubed (138739070280³) is 2670523104035348723624945285952000
• The square root of 138739070280 is 372476.9392593319
• The cube root of 138739070280 is 5176.8580883089

Scales and comparisons

• 138,739,070,280 seconds is equal to 4,411 years, 24 weeks, 4 days, 6 hours, 38 minutes.
• To count from 1 to 138,739,070,280 would take you about eight thousand, eight hundred twenty-two 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 138739070280 cubic inches would be around 431.4 feet tall.

Recreational maths with 138739070280

• 138739070280 backwards is 082070937831
• The number of decimal digits it has is: 12
• The sum of 138739070280's digits is 48
• More coming soon!