31618379940

Names of 31618379940

• Cardinal: 31618379940 can be written as Thirty-one billion, six hundred eighteen million, three hundred seventy-nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.161837994 × 10¹⁰

Factors of 31618379940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 67

Divisors of 31618379940

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 31 35 38 42 49 57 60 62 70 76 84 93 95 98 105 114 124 133 140 147 155 186 190 196 210 217 228 245 266 285 294 310 361 372 380 399 420 434 465 490 532 570 588 589 620 651 665 722 735 798 868 930 931 961 980 1083 1085 1140 1178 1302 1330 1444 1470 1519 1596 1767 1805 1860 1862 1922 1995 2166 2170 2356 2527 2604 2660 2793 2883 2940 2945 3038 3255 3534 3610 3724 3844 3990 4123 4332 4340 4557 4655 4805 5054 5415 5586 5766 5890 6076 6510 6727 7068 7220 7581 7595 7980 8246 8835 9114 9310 9610 10108 10830 11172 11191 11532 11780 12369 12635 13020 13454 13965 14415 15162 15190 16492 17670 17689 18228 18259 18620 19220 20181 20615 21660 22382 22785 24738 25270 26908 27930 28830 28861 29791 30324 30380 33573 33635 35340 35378 36518 37905 40362 41230 44764 45570 47089 49476 50540 53067 54777 55860 55955 57660 57722 59582 61845 67146 67270 70756 73036 75810 78337 80724 82460 86583 88445 89373 91140 91295 94178 100905 106134 109554 111910 115444 119164 123690 127813 134292 134540 141267 144305 148955 151620 156674 167865 173166 176890 178746 182590 188356 201810 208537 212268 219108 223820 235011 235445 247380 255626 265335 273885 282534 288610 297910 313348 335730 346332 346921 353780 357492 365180 383439 391685 403620 417074 432915 446865 470022 470890 511252 530670 547770 548359 565068 566029 577220 595820 625611 639065 671460 693842 706335 766878 783370 834148 865830 893730 894691 940044 941780 1040763 1042685 1061340 1095540 1096718 1132058 1175055 1251222 1278130 1387684 1412670 1459759 1533756 1566740 1645077 1698087 1731660 1734605 1787460 1789382 1917195 2081526 2085370 2193436 2264116 2350110 2428447 2502444 2556260 2684073 2741795 2825340 2830145 2919518 3128055 3290154 3396174 3469210 3578764 3834390 3962203 4163052 4170740 4379277 4473455 4700220 4856894 5203815 5368146 5483590 5660290 5839036 6256110 6580308 6792348 6938420 7285341 7298795 7668780 7924406 8225385 8490435 8758554 8946910 9713788 10407630 10736292 10754551 10967180 11320580 11886609 12142235 12512220 13420365 14570682 14597590 15848812 16450770 16980870 16999129 17517108 17893820 19811015 20815260 21509102 21896385 23773218 24284470 26840730 27735421 29141364 29195180 32263653 32901540 33961740 33998258 36426705 39622030 43018204 43792770 47546436 48568940 50997387 53681460 53772755 55470842 59433045 64527306 67996516 72853410 75281857 79244060 83206263 84995645 87585540 101994774 107545510 110941684 118866090 129054612 138677105 145706820 150563714 161318265 166412526 169991290 203989548 215091020 225845571 237732180 254986935 277354210 301127428 322636530 332825052 339982580 376409285 416031315 451691142 509973870 526972999 554708420 645273060 752818570 832062630 903382284 1019947740 1053945998 1129227855 1505637140 1580918997 1664125260 2107891996 2258455710 2634864995 3161837994 4516911420 5269729990 6323675988 7904594985 10539459980 15809189970 31618379940
• Sum of all divisors σ(n): 112314069504
• Sum of proper divisors (its aliquot sum) s(n): 80695689564
• 31618379940 is an abundant number, because the sum of its proper divisors (80695689564) is greater than itself. Its abundance is 49077309624

Bases of 31618379940

• Binary: 11101011100100110100011000010100100₂
• Hexadecimal: 0x75C9A30A4
• Base-36: EIWRM3O

Squares and roots of 31618379940

• 31618379940 squared (31618379940²) is 999721950030194403600
• 31618379940 cubed (31618379940³) is 31609588450412381125086503784000
• The square root of 31618379940 is 177815.5784513831
• The cube root of 31618379940 is 3162.1310979863

Scales and comparisons

• 31,618,379,940 seconds is equal to 1,005 years, 19 weeks, 11 hours, 19 minutes.
• To count from 1 to 31,618,379,940 would take you about two thousand and ten 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 31618379940 cubic inches would be around 263.5 feet tall.

Recreational maths with 31618379940

• 31618379940 backwards is 04997381613
• The number of decimal digits it has is: 11
• The sum of 31618379940's digits is 51
• More coming soon!