138539979720

Names of 138539979720

• Cardinal: 138539979720 can be written as One hundred thirty-eight billion, five hundred thirty-nine million, nine hundred seventy-nine thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.3853997972 × 10¹¹

Factors of 138539979720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1222

Divisors of 138539979720

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 29 30 36 38 40 45 54 57 58 60 71 72 76 81 87 90 95 108 114 116 120 135 142 145 152 162 171 174 180 190 213 216 228 232 261 270 284 285 290 324 342 348 355 360 380 405 426 435 456 513 522 540 551 568 570 580 639 648 684 696 710 760 783 810 852 855 870 1026 1044 1065 1080 1093 1102 1140 1160 1278 1305 1349 1368 1420 1539 1566 1620 1653 1704 1710 1740 1917 2052 2059 2088 2130 2186 2204 2280 2349 2556 2565 2610 2698 2755 2840 3078 3132 3195 3240 3279 3306 3420 3480 3834 3915 4047 4104 4118 4260 4372 4408 4698 4959 5112 5130 5220 5396 5465 5510 5751 6156 6177 6264 6390 6558 6612 6745 6840 7668 7695 7830 8094 8236 8265 8520 8744 9396 9585 9837 9918 10260 10295 10440 10792 10930 11020 11502 11745 12141 12312 12354 12780 13116 13224 13490 14877 15336 15390 15660 16188 16395 16472 16530 18531 18792 19170 19674 19836 20235 20520 20590 20767 21860 22040 23004 23490 24282 24708 24795 25560 26232 26980 28755 29511 29754 30780 30885 31320 31697 32376 32790 33060 36423 37062 38340 39121 39348 39672 40470 41180 41534 43720 44631 46008 46980 48564 49185 49416 49590 53960 55593 57510 59022 59508 60705 61560 61770 62301 63394 65580 66120 72846 74124 74385 76680 77603 78242 78696 80940 82360 83068 88533 89262 92655 93960 95091 97128 98370 99180 103835 109269 111186 115020 117363 118044 119016 121410 123540 124602 126788 131160 145692 147555 148248 148770 155206 156484 158485 161880 166136 166779 177066 178524 182115 185310 186903 190182 195605 196740 198360 207670 218538 222372 223155 230040 232809 234726 236088 242820 247080 249204 253576 277965 285273 291384 295110 297540 310412 311505 312968 316970 333558 352089 354132 357048 364230 370620 373806 380364 388015 391210 393480 415340 437076 442665 444744 446310 465618 469452 475455 485640 498408 546345 555930 560709 570546 586815 590220 595080 602243 620824 623010 633940 667116 698427 704178 708264 728460 741240 747612 760728 776030 782420 830680 833895 855819 874152 885330 892620 931236 934515 938904 950910 1056267 1092690 1111860 1121418 1141092 1164045 1173630 1180440 1204486 1246020 1267880 1334232 1396854 1408356 1426365 1456920 1474457 1495224 1552060 1564840 1667790 1682127 1711638 1760445 1770660 1785240 1806729 1862472 1869030 1901820 2095281 2112534 2185380 2223720 2242836 2250487 2282184 2328090 2347260 2408972 2492040 2567457 2793708 2803545 2816712 2852730 2948914 3011215 3104120 3168801 3335580 3364254 3423276 3492135 3520890 3541320 3613458 3738060 3803640 4190562 4225068 4279095 4370760 4423371 4485672 4500974 4656180 4694520 4817944 5134914 5281335 5420187 5587416 5607090 5705460 5897828 6022430 6285843 6337602 6671160 6728508 6751461 6846552 6984270 7041780 7226916 7372285 7476120 8381124 8410635 8450136 8558190 8846742 9001948 9033645 9312360 10269828 10476405 10562670 10840374 11214180 11252435 11410920 11795656 12044860 12571686 12675204 12837285 13270113 13457016 13502922 13968540 14083560 14453832 14744570 15844005 16260561 16762248 16821270 17116380 17693484 18003896 18067290 20254383 20539656 20952810 21125340 21680748 22116855 22428360 22504870 24089720 25143372 25350408 25674570 26540226 27005844 27100935 27937080 29489140 31429215 31688010 32521122 33642540 33757305 34232760 35386968 36134580 39810339 40508766 41905620 42250680 42759253 43361496 44233710 45009740 48781683 50286744 51349140 53080452 54011688 54201870 58978280 60763149 62858430 63376020 65042244 66350565 67285080 67514610 72269160 79620678 81017532 81302805 83811240 85518506 88467420 90019480 97563366 101271915 102698280 106160904 108403740 119431017 121526298 125716860 126752040 128277759 130084488 132701130 135029220 159241356 162035064 162605610 171037012 176934840 182289447 195126732 199051695 202543830 213796265 216807480 238862034 243052596 243908415 251433720 256555518 265402260 270058440 303815745 318482712 325211220 342074024 364578894 384833277 390253464 398103390 405087660 427592530 477724068 486105192 487816830 513111036 530804520 597155085 607631490 641388795 650422440 729157788 769666554 796206780 810175320 855185060 911447235 955448136 975633660 1026222072 1154499831 1194310170 1215262980 1282777590 1458315576 1539333108 1592413560 1710370120 1822894470 1924166385 1951267320 2308999662 2388620340 2430525960 2565555180 3078666216 3463499493 3645788940 3848332770 4617999324 4777240680 5131110360 5772499155 6926998986 7291577880 7696665540 9235998648 11544998310 13853997972 15393331080 17317497465 23089996620 27707995944 34634994930 46179993240 69269989860 138539979720
• Sum of all divisors σ(n): 514670112000
• Sum of proper divisors (its aliquot sum) s(n): 376130132280
• 138539979720 is an abundant number, because the sum of its proper divisors (376130132280) is greater than itself. Its abundance is 237590152560

Bases of 138539979720

• Binary: 10000001000001101000000101001111001000₂
• Hexadecimal: 0x2041A053C8
• Base-36: 1RN74KI0

Squares and roots of 138539979720

• 138539979720 squared (138539979720²) is 19193325980818011278400
• 138539979720 cubed (138539979720³) is 2659042992141876391520267274048000
• The square root of 138539979720 is 372209.5911176927
• The cube root of 138539979720 is 5174.3806391715

Scales and comparisons

• 138,539,979,720 seconds is equal to 4,405 years, 7 weeks, 2 days, 23 hours, 42 minutes.
• To count from 1 to 138,539,979,720 would take you about eight thousand, eight hundred ten 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 138539979720 cubic inches would be around 431.2 feet tall.

Recreational maths with 138539979720

• 138539979720 backwards is 027979935831
• The number of decimal digits it has is: 12
• The sum of 138539979720's digits is 63
• More coming soon!