18020902640

Names of 18020902640

• Cardinal: 18020902640 can be written as Eighteen billion, twenty million, nine hundred two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.802090264 × 10¹⁰

Factors of 18020902640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 143

Divisors of 18020902640

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 26 31 38 40 52 62 65 73 76 80 95 104 124 130 146 152 155 169 190 208 247 248 260 292 304 310 338 365 380 403 494 496 520 584 589 620 676 730 760 806 845 949 961 988 1040 1168 1178 1235 1240 1352 1387 1460 1520 1612 1690 1898 1922 1976 2015 2263 2356 2470 2480 2704 2774 2920 2945 3211 3224 3380 3796 3844 3952 4030 4526 4712 4745 4805 4940 5239 5548 5840 5890 6422 6448 6760 6935 7592 7657 7688 8060 9052 9424 9490 9610 9880 10478 11096 11315 11780 12337 12493 12844 13520 13870 15184 15314 15376 16055 16120 18031 18104 18259 18980 19220 19760 20956 22192 22630 23560 24674 24986 25688 26195 27740 29419 30628 32110 32240 36062 36208 36518 37960 38285 38440 41912 42997 45260 47120 49348 49972 51376 52390 55480 58838 61256 61685 62465 64220 70153 72124 73036 75920 76570 76880 83824 85994 90155 90520 91295 98696 99541 99944 104780 110960 117676 122512 123370 124930 128440 140306 144248 146072 147095 153140 162409 171988 180310 181040 182590 197392 199082 199888 209560 214985 234403 235352 237367 246740 249860 256880 280612 288496 292144 294190 306280 324818 343976 350765 360620 365180 382447 398164 419120 429970 468806 470704 474734 493480 497705 499720 558961 561224 588380 612560 649636 687952 701530 721240 730360 764894 796328 812045 859940 911989 937612 949468 986960 995410 999440 1117922 1122448 1172015 1176760 1186835 1299272 1332907 1403060 1442480 1460720 1529788 1592656 1624090 1719880 1823978 1875224 1898936 1912235 1990820 2235844 2344030 2353520 2373670 2598544 2665814 2794805 2806120 3059576 3085771 3248180 3439760 3647956 3750448 3797872 3824470 3981640 4471688 4559945 4688060 4747340 5331628 5589610 5612240 6119152 6171542 6496360 6664535 7266493 7295912 7648940 7963280 8943376 9119890 9376120 9494680 10663256 11179220 11855857 12343084 12992720 13329070 14532986 14591824 15297880 15428855 17327791 18239780 18752240 18989360 21326512 22358440 23711714 24686168 26658140 29065972 30595760 30857710 34655582 36332465 36479560 44716880 47423428 49372336 53316280 58131944 59279285 61715420 69311164 72664930 72959120 86638955 94846856 106632560 116263888 118558570 123430840 138622328 145329860 173277910 189693712 225261283 237117140 246861680 277244656 290659720 346555820 450522566 474234280 581319440 693111640 901045132 948468560 1126306415 1386223280 1802090264 2252612830 3604180528 4505225660 9010451320 18020902640
• Sum of all divisors σ(n): 50023606320
• Sum of proper divisors (its aliquot sum) s(n): 32002703680
• 18020902640 is an abundant number, because the sum of its proper divisors (32002703680) is greater than itself. Its abundance is 13981801040

Bases of 18020902640

• Binary: 10000110010001000010010011011110000₂
• Hexadecimal: 0x4322126F0
• Base-36: 8A16HGW

Squares and roots of 18020902640

• 18020902640 squared (18020902640²) is 324752931960358969600
• 18020902640 cubed (18020902640³) is 5852340968912173330612319744000
• The square root of 18020902640 is 134241.9555876627
• The cube root of 18020902640 is 2621.7554538911

Scales and comparisons

• 18,020,902,640 seconds is equal to 573 years, 3 days, 6 hours, 17 minutes, 20 seconds.
• To count from 1 to 18,020,902,640 would take you about one thousand, one hundred forty-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 18020902640 cubic inches would be around 218.5 feet tall.

Recreational maths with 18020902640

• 18020902640 backwards is 04620902081
• The number of decimal digits it has is: 11
• The sum of 18020902640's digits is 32
• More coming soon!