138804779520

Names of 138804779520

• Cardinal: 138804779520 can be written as One hundred thirty-eight billion, eight hundred four million, seven hundred seventy-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3880477952 × 10¹¹

Factors of 138804779520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 182582

Divisors of 138804779520

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 88 90 96 99 108 110 120 128 132 135 144 160 165 176 180 192 198 216 220 240 256 264 270 288 297 320 330 352 360 384 396 432 440 480 495 512 528 540 576 594 640 660 704 720 768 792 864 880 960 990 1056 1080 1152 1188 1280 1320 1408 1440 1485 1536 1584 1728 1760 1920 1980 2112 2160 2304 2376 2560 2640 2816 2880 2970 3168 3456 3520 3840 3960 4224 4320 4608 4752 5280 5632 5760 5940 6336 6912 7040 7680 7920 8448 8640 9504 10560 11520 11880 12672 13824 14080 15840 16896 17280 19008 21120 23040 23760 25344 28160 31680 34560 38016 42240 47520 50688 63360 69120 76032 84480 95040 126720 152064 182561 190080 253440 365122 380160 547683 730244 760320 912805 1095366 1460488 1643049 1825610 2008171 2190732 2738415 2920976 3286098 3651220 4016342 4381464 4929147 5476830 5841952 6024513 6572196 7302440 8032684 8215245 8762928 9858294 10040855 10953660 11683904 12049026 13144392 14604880 16065368 16430490 17525856 18073539 19716588 20081710 21907320 23367808 24098052 24645735 26288784 29209760 30122565 32130736 32860980 35051712 36147078 39433176 40163420 43814640 46735616 48196104 49291470 52577568 54220617 58419520 60245130 64261472 65721960 70103424 72294156 78866352 80326840 87629280 90367695 93471232 96392208 98582940 105155136 108441234 116839040 120490260 128522944 131443920 140206848 144588312 157732704 160653680 175258560 180735390 192784416 197165880 210310272 216882468 233678080 240980520 257045888 262887840 271103085 280413696 289176624 315465408 321307360 350517120 361470780 385568832 394331760 420620544 433764936 467356160 481961040 514091776 525775680 542206170 578353248 630930816 642614720 701034240 722941560 771137664 788663520 841241088 867529872 963922080 1028183552 1051551360 1084412340 1156706496 1261861632 1285229440 1402068480 1445883120 1542275328 1577327040 1735059744 1927844160 2103102720 2168824680 2313412992 2523723264 2570458880 2891766240 3084550656 3154654080 3470119488 3855688320 4206205440 4337649360 4626825984 5140917760 5783532480 6309308160 6940238976 7711376640 8675298720 9253651968 11567064960 12618616320 13880477952 15422753280 17350597440 23134129920 27760955904 34701194880 46268259840 69402389760 138804779520
• Sum of all divisors σ(n): 537871466880
• Sum of proper divisors (its aliquot sum) s(n): 399066687360
• 138804779520 is an abundant number, because the sum of its proper divisors (399066687360) is greater than itself. Its abundance is 260261907840

Bases of 138804779520

• Binary: 10000001010001011010001101101000000000₂
• Hexadecimal: 0x205168DA00
• Base-36: 1RRKS5C0

Squares and roots of 138804779520

• 138804779520 squared (138804779520²) is 19266766817595811430400
• 138804779520 cubed (138804779520³) is 2674319320179638662072167825408000
• The square root of 138804779520 is 372565.1346006493
• The cube root of 138804779520 is 5177.6752427003

Scales and comparisons

• 138,804,779,520 seconds is equal to 4,413 years, 29 weeks, 1 day, 19 hours, 12 minutes.
• To count from 1 to 138,804,779,520 would take you about eight thousand, eight hundred twenty-seven 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 138804779520 cubic inches would be around 431.5 feet tall.

Recreational maths with 138804779520

• 138804779520 backwards is 025977408831
• 138804779520 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138804779520's digits is 54
• More coming soon!