38978920640

Names of 38978920640

• Cardinal: 38978920640 can be written as Thirty-eight billion, nine hundred seventy-eight million, nine hundred twenty thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.897892064 × 10¹⁰

Factors of 38978920640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 214

Divisors of 38978920640

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 23 32 40 44 46 55 64 80 88 92 110 115 121 160 173 176 184 220 230 242 253 320 346 352 368 440 460 484 506 529 605 692 704 736 865 880 920 968 1012 1058 1210 1265 1331 1384 1472 1730 1760 1840 1903 1936 2024 2116 2420 2530 2645 2662 2768 2783 3460 3520 3680 3806 3872 3979 4048 4232 4840 5060 5290 5324 5536 5566 5819 6655 6920 7360 7612 7744 7958 8096 8464 9515 9680 10120 10580 10648 11072 11132 11638 13310 13840 13915 15224 15916 16192 16928 19030 19360 19895 20240 20933 21160 21296 22264 23276 26620 27680 27830 29095 30448 30613 31832 33856 38060 38720 39790 40480 41866 42320 42592 43769 44528 46552 53240 55360 55660 58190 60896 61226 63664 64009 76120 79580 80960 83732 84640 85184 87538 89056 91517 93104 104665 106480 111320 116380 121792 122452 127328 128018 152240 153065 159160 167464 169280 175076 178112 183034 186208 209330 212960 218845 222640 230263 232760 244904 254656 256036 304480 306130 318320 320045 334928 350152 366068 372416 418660 425920 437690 445280 457585 460526 465520 481459 489808 512072 608960 612260 636640 640090 669856 700304 704099 732136 837320 875380 890560 915170 921052 931040 962918 979616 1006687 1024144 1151315 1224520 1273280 1280180 1339712 1400608 1408198 1464272 1674640 1750760 1830340 1842104 1862080 1925836 1959232 2013374 2048288 2302630 2407295 2449040 2560360 2801216 2816396 2928544 3349280 3501520 3520495 3660680 3684208 3851672 4026748 4096576 4605260 4814590 4898080 5033435 5120720 5296049 5632792 5857088 6698560 7003040 7040990 7321360 7368416 7703344 8053496 9210520 9629180 9796160 10066870 10241440 10592098 11073557 11265584 14006080 14081980 14642720 14736832 15406688 16106992 18421040 19258360 20133740 20482880 21184196 22147114 22531168 26480245 28163960 29285440 30813376 32213984 36842080 38516720 40267480 42368392 44294228 45062336 52960490 55367785 56327920 64427968 73684160 77033440 80534960 84736784 88588456 105920980 110735570 112655840 121809127 154066880 161069920 169473568 177176912 211841960 221471140 225311680 243618254 322139840 338947136 354353824 423683920 442942280 487236508 609045635 708707648 847367840 885884560 974473016 1218091270 1694735680 1771769120 1948946032 2436182540 3543538240 3897892064 4872365080 7795784128 9744730160 19489460320 38978920640
• Sum of all divisors σ(n): 107342184096
• Sum of proper divisors (its aliquot sum) s(n): 68363263456
• 38978920640 is an abundant number, because the sum of its proper divisors (68363263456) is greater than itself. Its abundance is 29384342816

Bases of 38978920640

• Binary: 100100010011010100110010000011000000₂
• Hexadecimal: 0x9135320C0
• Base-36: HWN1JNK

Squares and roots of 38978920640

• 38978920640 squared (38978920640²) is 1519356254259418009600
• 38978920640 cubed (38978920640³) is 59222866858665516568785158144000
• The square root of 38978920640 is 197430.7996235645
• The cube root of 38978920640 is 3390.6003536999

Scales and comparisons

• 38,978,920,640 seconds is equal to 1,239 years, 21 weeks, 1 day, 21 hours, 57 minutes, 20 seconds.
• To count from 1 to 38,978,920,640 would take you about two thousand, four hundred seventy-eight 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 38978920640 cubic inches would be around 282.6 feet tall.

Recreational maths with 38978920640

• 38978920640 backwards is 04602987983
• The number of decimal digits it has is: 11
• The sum of 38978920640's digits is 56
• More coming soon!