138655629840

Names of 138655629840

• Cardinal: 138655629840 can be written as One hundred thirty-eight billion, six hundred fifty-five million, six hundred twenty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3865562984 × 10¹¹

Factors of 138655629840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 373500

Divisors of 138655629840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 20 21 24 26 28 30 34 35 39 40 42 48 51 52 56 60 65 68 70 78 80 84 85 91 102 104 105 112 119 120 130 136 140 156 168 170 182 195 204 208 210 221 238 240 255 260 272 273 280 312 336 340 357 364 390 408 420 442 455 476 510 520 546 560 595 624 663 680 714 728 780 816 840 884 910 952 1020 1040 1092 1105 1190 1326 1360 1365 1428 1456 1547 1560 1680 1768 1785 1820 1904 2040 2184 2210 2380 2652 2730 2856 3094 3120 3315 3536 3570 3640 4080 4368 4420 4641 4760 5304 5460 5712 6188 6630 7140 7280 7735 8840 9282 9520 10608 10920 12376 13260 14280 15470 17680 18564 21840 23205 24752 26520 28560 30940 37128 46410 53040 61880 74256 92820 123760 185640 371280 373453 746906 1120359 1493812 1867265 2240718 2614171 2987624 3734530 4481436 4854889 5228342 5601795 5975248 6348701 7469060 7842513 8962872 9709778 10456684 11203590 12697402 13070855 14564667 14938120 15685026 17925744 19046103 19419556 20913368 22407180 24274445 25394804 26141710 29129334 29876240 31370052 31743505 33984223 38092206 38839112 39212565 41826736 44440907 44814360 48548890 50789608 52283420 58258668 62740104 63487010 67968446 72823335 76184412 77678224 78425130 82533113 88881814 89628720 95230515 97097780 101579216 101952669 104566840 116517336 125480208 126974020 133322721 135936892 145646670 152368824 156850260 165066226 169921115 177763628 190461030 194195560 203905338 209133680 222204535 233034672 247599339 253948040 266645442 271873784 291293340 304737648 313700520 330132452 339842230 355527256 380922060 388391120 407810676 412665565 444409070 495198678 507896080 509763345 533290884 543747568 577731791 582586680 627401040 660264904 666613605 679684460 711054512 761844120 815621352 825331130 888818140 990397356 1019526690 1066581768 1155463582 1165173360 1237996695 1320529808 1333227210 1359368920 1523688240 1631242704 1650662260 1733195373 1777636280 1980794712 2039053380 2133163536 2310927164 2475993390 2666454420 2718737840 2888658955 3301324520 3466390746 3555272560 3961589424 4078106760 4621854328 4951986780 5332908840 5777317910 6602649040 6932781492 8156213520 8665976865 9243708656 9903973560 10665817680 11554635820 13865562984 17331953730 19807947120 23109271640 27731125968 34663907460 46218543280 69327814920 138655629840
• Sum of all divisors σ(n): 560145148416
• Sum of proper divisors (its aliquot sum) s(n): 421489518576
• 138655629840 is an abundant number, because the sum of its proper divisors (421489518576) is greater than itself. Its abundance is 282833888736

Bases of 138655629840

• Binary: 10000001001000100001010000001000010000₂
• Hexadecimal: 0x2048850210
• Base-36: 1RP3ZCPC

Squares and roots of 138655629840

• 138655629840 squared (138655629840²) is 19225383686327098425600
• 138655629840 cubed (138655629840³) is 2665707683943344828461240379904000
• The square root of 138655629840 is 372364.9148886077
• The cube root of 138655629840 is 5175.8200583313

Scales and comparisons

• 138,655,629,840 seconds is equal to 4,408 years, 42 weeks, 4 days, 12 hours, 44 minutes.
• To count from 1 to 138,655,629,840 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 138655629840 cubic inches would be around 431.3 feet tall.

Recreational maths with 138655629840

• 138655629840 backwards is 048926556831
• The number of decimal digits it has is: 12
• The sum of 138655629840's digits is 57
• More coming soon!