138171849840

Names of 138171849840

• Cardinal: 138171849840 can be written as One hundred thirty-eight billion, one hundred seventy-one million, eight hundred forty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3817184984 × 10¹¹

Factors of 138171849840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 29409

Divisors of 138171849840

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 37 40 45 48 54 59 60 72 74 80 90 108 111 118 120 135 144 148 177 180 185 216 222 236 240 270 295 296 333 354 360 370 432 444 472 531 540 555 590 592 666 708 720 740 885 888 944 999 1062 1080 1110 1180 1332 1416 1480 1593 1665 1770 1776 1998 2124 2160 2183 2220 2360 2655 2664 2832 2960 3186 3330 3540 3996 4248 4366 4440 4720 4995 5310 5328 6372 6549 6660 7080 7965 7992 8496 8732 8880 9990 10620 10915 12744 13098 13320 14160 15930 15984 17464 19647 19980 21240 21830 25488 26196 26640 29303 31860 32745 34928 39294 39960 42480 43660 52392 58606 58941 63720 65490 78588 79920 87320 87909 98235 104784 117212 117882 127440 130980 146515 157176 174640 175818 196470 234424 235764 261960 263727 293030 294705 314352 351636 392940 439545 468848 471528 523920 527454 586060 589410 703272 785880 791181 879090 943056 1054908 1084211 1172120 1178820 1318635 1406544 1571760 1582362 1728877 1758180 2109816 2168422 2344240 2357640 2637270 3164724 3252633 3457754 3516360 3955905 4219632 4336844 4715280 5186631 5274540 5421055 6329448 6505266 6915508 7032720 7911810 8644385 8673688 9757899 10373262 10549080 10842110 12658896 13010532 13831016 15559893 15823620 16263165 17288770 17347376 19515798 20746524 21098160 21684220 25933155 26021064 27662032 29273697 31119786 31647240 32526330 34577540 39031596 41493048 43368440 46679679 48789495 51866310 52042128 58547394 62239572 63294480 63968449 65052660 69155080 77799465 78063192 82986096 86736880 93359358 97578990 103732620 117094788 124479144 127936898 130105320 138310160 146368485 155598930 156126384 186718716 191905347 195157980 207465240 233398395 234189576 248958288 255873796 260210640 292736970 311197860 319842245 373437432 383810694 390315960 414930480 466796790 468379152 511747592 575716041 585473940 622395720 639684490 746874864 767621388 780631920 933593580 959526735 1023495184 1151432082 1170947880 1244791440 1279368980 1535242776 1727148123 1867187160 1919053470 2302864164 2341895760 2558737960 2878580205 3070485552 3454296246 3734374320 3838106940 4605728328 5117475920 5757160410 6908592492 7676213880 8635740615 9211456656 11514320820 13817184984 15352427760 17271481230 23028641640 27634369968 34542962460 46057283280 69085924920 138171849840
• Sum of all divisors σ(n): 497089612800
• Sum of proper divisors (its aliquot sum) s(n): 358917762960
• 138171849840 is an abundant number, because the sum of its proper divisors (358917762960) is greater than itself. Its abundance is 220745913120

Bases of 138171849840

• Binary: 10000000101011101011110001110001110000₂
• Hexadecimal: 0x202BAF1C70
• Base-36: 1RH3Y9O0

Squares and roots of 138171849840

• 138171849840 squared (138171849840²) is 19091460088207508025600
• 138171849840 cubed (138171849840³) is 2637902356534160953673798075904000
• The square root of 138171849840 is 371714.7425647791
• The cube root of 138171849840 is 5169.7934343003

Scales and comparisons

• 138,171,849,840 seconds is equal to 4,393 years, 22 weeks, 5 days, 5 hours, 24 minutes.
• To count from 1 to 138,171,849,840 would take you about eight thousand, seven hundred eighty-six 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 138171849840 cubic inches would be around 430.8 feet tall.

Recreational maths with 138171849840

• 138171849840 backwards is 048948171831
• 138171849840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138171849840's digits is 54
• More coming soon!