138258207890

Names of 138258207890

• Cardinal: 138258207890 can be written as One hundred thirty-eight billion, two hundred fifty-eight million, two hundred seven thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.3825820789 × 10¹¹

Factors of 138258207890

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 873

Divisors of 138258207890

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 10 11 22 23 29 31 46 55 58 62 89 110 115 145 155 178 230 253 290 310 319 341 445 506 638 667 682 683 713 890 899 979 1265 1334 1366 1426 1595 1705 1798 1958 2047 2530 2581 2759 3190 3335 3410 3415 3565 4094 4495 4895 5162 5518 6670 6830 7130 7337 7513 7843 8990 9790 9889 10235 12905 13795 14674 15026 15686 15709 19778 19807 20470 20677 21173 22517 25810 27590 28391 30349 31418 36685 37565 39215 39614 41354 42346 45034 49445 56782 59363 60698 60787 63457 73370 75130 78430 78545 80011 98890 99035 103385 105865 112585 118726 121574 126914 141955 151745 157090 160022 172799 198070 206770 211730 217877 225170 227447 232903 283910 296815 303490 303935 317285 345598 400055 435754 454894 455561 465806 486979 593630 607870 614017 634570 652993 668657 698027 800110 863995 880121 911122 973958 1089385 1137235 1164515 1228034 1305986 1337314 1396054 1398101 1727990 1760242 1762823 1840253 1884397 2178770 2274470 2277805 2329030 2434895 2796202 3070085 3264965 3343285 3490135 3525646 3680506 3768794 4400605 4555610 4869790 5011171 5356769 6140170 6529930 6686570 6754187 6980270 6990505 8801210 8814115 9201265 9421985 10022342 10713538 13508374 13981010 14122391 15379111 17628230 18402530 18843970 19391053 20242783 20728367 25055855 26783845 28244782 30758222 33770935 38782106 40485566 40544929 41456734 43341131 50111710 53567690 54647513 67541870 70611955 76895555 81089858 86682262 96955265 101213915 103641835 109295026 141223910 153791110 155346301 193910530 202427830 202724645 207283670 216705655 273237565 310692602 405449290 433411310 445994219 476752441 546475130 601122643 776731505 891988438 953504882 1202245286 1256892799 1553463010 2229971095 2383762205 2513785598 3005613215 4459942190 4767524410 6011226430 6284463995 12568927990 13825820789 27651641578 69129103945 138258207890
• Sum of all divisors σ(n): 306361958400
• Sum of proper divisors (its aliquot sum) s(n): 168103750510
• 138258207890 is an abundant number, because the sum of its proper divisors (168103750510) is greater than itself. Its abundance is 29845542620

Bases of 138258207890

• Binary: 10000000110000110101001101010010010010₂
• Hexadecimal: 0x2030D4D492
• Base-36: 1RIJD7YQ

Squares and roots of 138258207890

• 138258207890 squared (138258207890²) is 19115332048954458252100
• 138258207890 cubed (138258207890³) is 2642851552310725146161167829069000
• The square root of 138258207890 is 371830.8861431497
• The cube root of 138258207890 is 5170.8702583203

Scales and comparisons

• 138,258,207,890 seconds is equal to 4,396 years, 9 weeks, 3 days, 17 hours, 44 minutes, 50 seconds.
• To count from 1 to 138,258,207,890 would take you about eight thousand, seven hundred ninety-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 138258207890 cubic inches would be around 430.9 feet tall.

Recreational maths with 138258207890

• 138258207890 backwards is 098702852831
• The number of decimal digits it has is: 12
• The sum of 138258207890's digits is 53
• More coming soon!