138824640

Names of 138824640

• Cardinal: 138824640 can be written as One hundred thirty-eight million, eight hundred twenty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.3882464 × 10⁸

Factors of 138824640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 131

Divisors of 138824640

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 43 45 48 57 59 60 64 72 76 80 86 90 95 96 114 118 120 129 144 152 160 171 172 177 180 190 192 215 228 236 240 258 285 288 295 304 320 342 344 354 360 380 387 430 456 472 480 516 531 570 576 590 608 645 684 688 708 720 760 774 817 855 860 885 912 944 960 1032 1062 1121 1140 1180 1216 1290 1368 1376 1416 1440 1520 1548 1634 1710 1720 1770 1824 1888 1935 2064 2124 2242 2280 2360 2451 2537 2580 2655 2736 2752 2832 2880 3040 3096 3268 3363 3420 3440 3540 3648 3776 3870 4085 4128 4248 4484 4560 4720 4902 5074 5160 5310 5472 5605 5664 6080 6192 6536 6726 6840 6880 7080 7353 7611 7740 8170 8256 8496 8968 9120 9440 9804 10089 10148 10320 10620 10944 11210 11328 12255 12384 12685 13072 13452 13680 13760 14160 14706 15222 15480 16340 16815 16992 17936 18240 18880 19608 20178 20296 20640 21240 22420 22833 24510 24768 25370 26144 26904 27360 28320 29412 30444 30960 32680 33630 33984 35872 36765 38055 39216 40356 40592 41280 42480 44840 45666 48203 49020 50445 50740 52288 53808 54720 56640 58824 60888 61920 65360 67260 71744 73530 76110 78432 80712 81184 84960 89680 91332 96406 98040 100890 101480 107616 114165 117648 121776 123840 130720 134520 144609 147060 152220 156864 161424 162368 169920 179360 182664 192812 196080 201780 202960 215232 228330 235296 241015 243552 261440 269040 289218 294120 304440 322848 358720 365328 385624 392160 403560 405920 433827 456660 470592 482030 487104 538080 578436 588240 608880 645696 723045 730656 771248 784320 807120 811840 867654 913320 964060 1076160 1156872 1176480 1217760 1446090 1461312 1542496 1614240 1735308 1826640 1928120 2169135 2313744 2352960 2435520 2892180 3084992 3228480 3470616 3653280 3856240 4338270 4627488 5784360 6941232 7306560 7712480 8676540 9254976 11568720 13882464 15424960 17353080 23137440 27764928 34706160 46274880 69412320 138824640
• Sum of all divisors σ(n): 523036800
• Sum of proper divisors (its aliquot sum) s(n): 384212160
• 138824640 is an abundant number, because the sum of its proper divisors (384212160) is greater than itself. Its abundance is 245387520

Bases of 138824640

• Binary: 1000010001100100101111000000₂
• Hexadecimal: 0x8464BC0
• Base-36: 2ANHS0

Squares and roots of 138824640

• 138824640 squared (138824640²) is 19272280671129600
• 138824640 cubed (138824640³) is 2675467426148525113344000
• The square root of 138824640 is 11782.3868549627
• The cube root of 138824640 is 517.7922175147

Scales and comparisons

• 138,824,640 seconds is equal to 4 years, 21 weeks, 3 days, 18 hours, 24 minutes.
• To count from 1 to 138,824,640 would take you about 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 138824640 cubic inches would be around 43.1 feet tall.

Recreational maths with 138824640

• 138824640 backwards is 046428831
• 138824640 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138824640's digits is 36
• More coming soon!