138394051380

Names of 138394051380

• Cardinal: 138394051380 can be written as One hundred thirty-eight billion, three hundred ninety-four million, fifty-one thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.3839405138 × 10¹¹

Factors of 138394051380

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3170

Divisors of 138394051380

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 127 130 156 163 180 195 234 254 260 326 381 390 468 489 508 585 635 652 762 780 815 978 1143 1170 1270 1467 1524 1630 1651 1905 1956 2119 2286 2340 2445 2540 2857 2934 3260 3302 3810 4238 4572 4890 4953 5714 5715 5868 6357 6604 7335 7620 8255 8476 8571 9780 9906 10595 11428 11430 12714 14285 14670 14859 16510 17142 19071 19812 20701 21190 22860 24765 25428 25713 28570 29340 29718 31785 33020 34284 37141 38142 41402 42380 42855 49530 51426 57140 59436 62103 63570 74282 74295 76284 82804 85710 95355 99060 102852 103505 111423 124206 127140 128565 148564 148590 171420 185705 186309 190710 207010 222846 248412 257130 269113 297180 310515 334269 362839 371410 372618 381420 414020 445692 465691 514260 538226 557115 621030 668538 725678 742820 745236 807339 931382 931545 1076452 1088517 1114230 1242060 1337076 1345565 1397073 1451356 1614678 1671345 1814195 1862764 1863090 2177034 2228460 2328455 2422017 2691130 2794146 3229356 3265551 3342690 3628390 3726180 4036695 4191219 4354068 4656910 4716907 4844034 5382260 5442585 5588292 6053983 6531102 6685380 6985365 7256780 8073390 8382438 9313820 9433814 9688068 10885170 12107966 12110085 13062204 13970730 14150721 16146780 16327755 16764876 18161949 18867628 20956095 21770340 23584535 24215932 24220170 27941460 28301442 30269915 32655510 36323898 41912190 42452163 47169070 48440340 54485847 56602884 59142757 60539830 65311020 70753605 72647796 83824380 84904326 90809745 94338140 108971694 118285514 121079660 141507210 169808652 177428271 181619490 212260815 217943388 236571028 272429235 283014420 295713785 354856542 363238980 424521630 532284813 544858470 591427570 709713084 768855841 849043260 887141355 1064569626 1089716940 1182855140 1537711682 1774282710 2129139252 2306567523 2661424065 3075423364 3548565420 3844279205 4613135046 5322848130 6919702569 7688558410 9226270092 10645696260 11532837615 13839405138 15377116820 23065675230 27678810276 34598512845 46131350460 69197025690 138394051380
• Sum of all divisors σ(n): 458602819584
• Sum of proper divisors (its aliquot sum) s(n): 320208768204
• 138394051380 is an abundant number, because the sum of its proper divisors (320208768204) is greater than itself. Its abundance is 181814716824

Bases of 138394051380

• Binary: 10000000111000111011011010001100110100₂
• Hexadecimal: 0x2038EDA334
• Base-36: 1RKS8TH0

Squares and roots of 138394051380

• 138394051380 squared (138394051380²) is 19152913457370079904400
• 138394051380 cubed (138394051380³) is 2650649289095968277964239088072000
• The square root of 138394051380 is 372013.5096740439
• The cube root of 138394051380 is 5172.5632238345

Scales and comparisons

• 138,394,051,380 seconds is equal to 4,400 years, 26 weeks, 1 day, 3 minutes.
• To count from 1 to 138,394,051,380 would take you about eight thousand, eight hundred one 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 138394051380 cubic inches would be around 431 feet tall.

Recreational maths with 138394051380

• 138394051380 backwards is 083150493831
• 138394051380 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138394051380's digits is 45
• More coming soon!