138658379520

Names of 138658379520

• Cardinal: 138658379520 can be written as One hundred thirty-eight billion, six hundred fifty-eight million, three hundred seventy-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3865837952 × 10¹¹

Factors of 138658379520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5173

Divisors of 138658379520

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 53 60 64 80 96 106 120 128 137 159 160 192 212 240 256 265 274 318 320 384 411 424 480 530 548 636 640 685 768 795 822 848 960 1060 1096 1272 1280 1370 1590 1644 1696 1920 2055 2120 2192 2544 2740 3180 3288 3392 3840 4110 4240 4384 4973 5088 5480 6360 6576 6784 7261 8220 8480 8768 9946 10176 10960 12720 13152 13568 14522 14919 16440 16960 17536 19892 20352 21783 21920 24865 25440 26304 29044 29838 32880 33920 35072 36305 39784 40704 43566 43840 49730 50880 52608 58088 59676 65760 67840 72610 74595 79568 87132 87680 99460 101760 105216 108915 116176 119352 131520 145220 149190 159136 174264 175360 198920 203520 217830 232352 238704 263040 263569 290440 298380 318272 348528 397840 435660 464704 477408 526080 527138 580880 596760 636544 681301 697056 790707 795680 871320 929408 954816 1054276 1161760 1193520 1273088 1317845 1362602 1394112 1581414 1591360 1742640 1858816 1909632 2043903 2108552 2323520 2387040 2635690 2725204 2788224 3162828 3182720 3406505 3485280 3819264 3953535 4087806 4217104 4647040 4774080 5271380 5450408 5576448 6325656 6365440 6813010 6970560 7907070 8175612 8434208 9294080 9548160 10219515 10542760 10900816 12651312 13626020 13941120 15814140 16351224 16868416 19096320 20439030 21085520 21801632 25302624 27252040 27882240 31628280 32702448 33736832 36108953 40878060 42171040 43603264 50605248 54504080 63256560 65404896 67473664 72217906 81756120 84342080 87206528 101210496 108326859 109008160 126513120 130809792 144435812 163512240 168684160 174413056 180544765 202420992 216653718 218016320 253026240 261619584 288871624 327024480 337368320 361089530 433307436 436032640 506052480 523239168 541634295 577743248 654048960 722179060 866614872 872065280 1012104960 1083268590 1155486496 1308097920 1444358120 1733229744 2166537180 2310972992 2616195840 2888716240 3466459488 4333074360 4621945984 5777432480 6932918976 8666148720 9243891968 11554864960 13865837952 17332297440 23109729920 27731675904 34664594880 46219459840 69329189760 138658379520
• Sum of all divisors σ(n): 454580465472
• Sum of proper divisors (its aliquot sum) s(n): 315922085952
• 138658379520 is an abundant number, because the sum of its proper divisors (315922085952) is greater than itself. Its abundance is 177263706432

Bases of 138658379520

• Binary: 10000001001000101011101111011100000000₂
• Hexadecimal: 0x2048AEF700
• Base-36: 1RP5MADC

Squares and roots of 138658379520

• 138658379520 squared (138658379520²) is 19226146211112355430400
• 138658379520 cubed (138658379520³) is 2665866278047427020629536145408000
• The square root of 138658379520 is 372368.6070548913
• The cube root of 138658379520 is 5175.8542720037

Scales and comparisons

• 138,658,379,520 seconds is equal to 4,408 years, 47 weeks, 1 day, 8 hours, 32 minutes.
• To count from 1 to 138,658,379,520 would take you about eight thousand, eight hundred seventeen 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 138658379520 cubic inches would be around 431.3 feet tall.

Recreational maths with 138658379520

• 138658379520 backwards is 025973856831
• The number of decimal digits it has is: 12
• The sum of 138658379520's digits is 57
• More coming soon!