31158209940

Names of 31158209940

• Cardinal: 31158209940 can be written as Thirty-one billion, one hundred fifty-eight million, two hundred nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.115820994 × 10¹⁰

Factors of 31158209940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3949

Divisors of 31158209940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 13 15 20 22 23 26 30 33 39 41 44 46 52 55 60 65 66 69 78 82 92 110 115 123 130 132 138 143 156 164 165 195 205 220 230 246 253 260 276 286 299 330 345 390 410 429 451 460 492 506 533 572 598 615 660 690 715 759 780 820 858 897 902 943 1012 1066 1196 1230 1265 1353 1380 1430 1495 1518 1599 1716 1794 1804 1886 2132 2145 2255 2460 2530 2665 2706 2829 2860 2990 3036 3198 3289 3588 3772 3795 3851 4290 4485 4510 4715 5060 5330 5412 5658 5863 5980 6396 6578 6765 7590 7702 7995 8580 8970 9020 9430 9867 10373 10660 11316 11553 11726 12259 13156 13530 14145 15180 15404 15990 16445 17589 17940 18860 19255 19734 20746 23106 23452 24518 27060 28290 29315 31119 31980 32890 35178 36777 38510 39468 41492 42361 46212 49036 49335 50063 51865 56580 57765 58630 61295 62238 65780 70356 73554 77020 84722 87945 88573 98670 100126 103730 115530 117260 122590 124476 127083 134849 147108 150189 155595 157891 169444 175890 177146 183885 197340 200252 207460 211805 231060 245180 250315 254166 265719 269698 300378 311190 315782 351780 354292 367770 404547 423610 442865 473673 500630 508332 531438 539396 550693 600756 622380 631564 635415 674245 735540 750945 789455 809094 847220 885730 947346 974303 1001260 1062876 1101386 1151449 1270830 1328595 1348490 1501890 1578910 1618188 1652079 1736801 1771460 1894692 1948606 2022735 2052583 2202772 2302898 2368365 2541660 2657190 2696980 2753465 2922909 3003780 3157820 3304158 3454347 3473602 3631493 3897212 4045470 4105166 4605796 4736730 4871515 5210403 5314380 5506930 5757245 5845818 6157749 6608316 6908694 6947204 7262986 8090940 8210332 8260395 8684005 9473460 9743030 10262915 10420806 10894479 11013860 11514490 11691636 12315498 12665939 13817388 14525972 14614545 16520790 17271735 17368010 18157465 19486060 20525830 20841612 21788958 22578413 23028980 24630996 25331878 26052015 29229090 30788745 33041580 34543470 34736020 36314930 37997817 39946423 41051660 43577916 45156826 47209409 50663756 52104030 54472395 58458180 61577490 63329695 67735239 69086940 72629860 75995634 79892846 90313652 94418818 104208060 108944790 112892065 119839269 123154980 126659390 135470478 141628227 151991268 159785692 188837636 189989085 199732115 217889580 225784130 236047045 239678538 253318780 270940956 283256454 338676195 379978170 399464230 451568260 472094090 479357076 519303499 566512908 599196345 677352390 708141135 759956340 798928460 944188180 1038606998 1198392690 1354704780 1416282270 1557910497 2077213996 2396785380 2596517495 2832564540 3115820994 5193034990 6231641988 7789552485 10386069980 15579104970 31158209940
• Sum of all divisors σ(n): 109588598784
• Sum of proper divisors (its aliquot sum) s(n): 78430388844
• 31158209940 is an abundant number, because the sum of its proper divisors (78430388844) is greater than itself. Its abundance is 47272178904

Bases of 31158209940

• Binary: 11101000001001011001000110110010100₂
• Hexadecimal: 0x7412C8D94
• Base-36: EBASKNO

Squares and roots of 31158209940

• 31158209940 squared (31158209940²) is 970834046665114803600
• 31158209940 cubed (31158209940³) is 30249451042891403924770667784000
• The square root of 31158209940 is 176516.8828752649
• The cube root of 31158209940 is 3146.7156475537

Scales and comparisons

• 31,158,209,940 seconds is equal to 990 years, 38 weeks, 1 day, 10 hours, 19 minutes.
• To count from 1 to 31,158,209,940 would take you about one thousand, nine hundred eighty-one 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 31158209940 cubic inches would be around 262.2 feet tall.

Recreational maths with 31158209940

• 31158209940 backwards is 04990285113
• The number of decimal digits it has is: 11
• The sum of 31158209940's digits is 42
• More coming soon!