31428651840

Names of 31428651840

• Cardinal: 31428651840 can be written as Thirty-one billion, four hundred twenty-eight million, six hundred fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.142865184 × 10¹⁰

Factors of 31428651840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 364

Divisors of 31428651840

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 47 48 60 64 80 86 94 96 97 120 129 141 160 167 172 188 192 194 215 235 240 258 282 291 320 334 344 376 388 430 470 480 485 501 516 564 582 645 668 688 705 752 776 835 860 940 960 970 1002 1032 1128 1164 1290 1336 1376 1410 1455 1504 1552 1670 1720 1880 1940 2004 2021 2064 2256 2328 2505 2580 2672 2752 2820 2910 3008 3104 3340 3440 3760 3880 4008 4042 4128 4171 4512 4559 4656 5010 5160 5344 5640 5820 6063 6208 6680 6880 7181 7520 7760 7849 8016 8084 8256 8342 9024 9118 9312 10020 10105 10320 10688 11280 11640 12126 12513 13360 13677 13760 14362 15040 15520 15698 16032 16168 16199 16684 18236 18624 20040 20210 20640 20855 21543 22560 22795 23280 23547 24252 25026 26720 27354 28724 30315 31040 31396 32064 32336 32398 33368 35905 36472 39245 40080 40420 41280 41710 43086 45120 45590 46560 47094 48504 48597 50052 53440 54708 57448 60630 62565 62792 64672 64796 66736 68385 71810 72944 78490 80160 80840 80995 83420 86172 91180 93120 94188 97008 97194 100104 107715 109416 114896 117735 121260 125130 125584 129344 129592 133472 136770 143620 145888 156980 160320 161680 161990 166840 172344 182360 188376 194016 194388 196037 200208 215430 218832 229792 235470 242520 242985 250260 251168 259184 266944 273540 287240 291776 313960 323360 323980 333680 337507 344688 364720 376752 388032 388776 392074 400416 430860 437664 459584 470940 485040 485970 500520 502336 518368 547080 574480 588111 627920 646720 647960 667360 675014 689376 696557 729440 753504 761353 777552 784148 800832 861720 875328 941880 970080 971940 980185 1001040 1012521 1036736 1094160 1148960 1176222 1255840 1295920 1334720 1350028 1378752 1393114 1458880 1507008 1522706 1555104 1568296 1687535 1723440 1883760 1940160 1943880 1960370 2002080 2025042 2089671 2188320 2284059 2297920 2352444 2511680 2591840 2700056 2786228 2940555 3045412 3110208 3136592 3375070 3446880 3482785 3767520 3806765 3887760 3920740 4004160 4050084 4179342 4376640 4568118 4704888 5062605 5183680 5400112 5572456 5881110 6090824 6273184 6750140 6893760 6965570 7535040 7613530 7775520 7841480 8100168 8358684 9136236 9409776 10125210 10448355 10800224 11144912 11420295 11762220 12181648 12546368 13500280 13931140 15227060 15551040 15682960 16200336 16717368 18272472 18819552 20250420 20896710 21600448 22289824 22840590 23524440 24363296 27000560 27862280 30454120 31365920 32400672 32738179 33434736 36544944 37639104 40500840 41793420 44579648 45681180 47048880 48726592 54001120 55724560 60908240 62731840 64801344 65476358 66869472 73089888 81001680 83586840 91362360 94097760 98214537 108002240 111449120 121816480 130952716 133738944 146179776 162003360 163690895 167173680 182724720 188195520 196429074 222898240 243632960 261905432 324006720 327381790 334347360 365449440 392858148 491072685 523810864 654763580 668694720 730898880 785716296 982145370 1047621728 1309527160 1571432592 1964290740 2095243456 2619054320 3142865184 3928581480 5238108640 6285730368 7857162960 10476217280 15714325920 31428651840
• Sum of all divisors σ(n): 105984958464
• Sum of proper divisors (its aliquot sum) s(n): 74556306624
• 31428651840 is an abundant number, because the sum of its proper divisors (74556306624) is greater than itself. Its abundance is 43127654784

Bases of 31428651840

• Binary: 11101010001010010110010101101000000₂
• Hexadecimal: 0x7514B2B40
• Base-36: EFRT2YO

Squares and roots of 31428651840

• 31428651840 squared (31428651840²) is 987760156479935385600
• 31428651840 cubed (31428651840³) is 31043970059431809179718549504000
• The square root of 31428651840 is 177281.2788762535
• The cube root of 31428651840 is 3155.7935484797

Scales and comparisons

• 31,428,651,840 seconds is equal to 999 years, 17 weeks, 2 days, 13 hours, 4 minutes.
• To count from 1 to 31,428,651,840 would take you about one thousand, nine hundred ninety-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 31428651840 cubic inches would be around 263 feet tall.

Recreational maths with 31428651840

• 31428651840 backwards is 04815682413
• The number of decimal digits it has is: 11
• The sum of 31428651840's digits is 42
• More coming soon!