389993940

Names of 389993940

• Cardinal: 389993940 can be written as Three hundred eighty-nine million, nine hundred ninety-three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.8999394 × 10⁸

Factors of 389993940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 34

Divisors of 389993940

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 27 28 30 34 35 36 42 45 49 51 54 60 63 68 70 81 84 85 90 98 102 105 108 119 126 135 140 147 153 162 170 180 189 196 204 210 238 245 252 255 270 289 294 306 315 324 340 357 378 405 420 441 459 476 490 510 540 567 578 588 595 612 630 714 735 756 765 810 833 867 882 918 945 980 1020 1071 1134 1156 1190 1260 1323 1377 1428 1445 1470 1530 1620 1666 1734 1764 1785 1836 1890 2023 2142 2205 2268 2295 2380 2499 2601 2646 2754 2835 2890 2940 3060 3213 3332 3468 3570 3780 3969 4046 4165 4284 4335 4410 4590 4913 4998 5202 5292 5355 5508 5670 5780 6069 6426 6615 6885 7140 7497 7803 7938 8092 8330 8670 8820 9180 9639 9826 9996 10115 10404 10710 11340 12138 12495 12852 13005 13230 13770 14161 14739 14994 15606 15876 16065 16660 17340 18207 19278 19652 19845 20230 21420 22491 23409 24276 24565 24990 26010 26460 27540 28322 29478 29988 30345 31212 32130 34391 36414 37485 38556 39015 39690 40460 42483 44217 44982 46818 48195 49130 49980 52020 54621 56644 58956 60690 64260 67473 68782 70805 72828 73695 74970 78030 79380 84966 88434 89964 91035 93636 96390 98260 103173 109242 112455 117045 121380 127449 132651 134946 137564 141610 147390 149940 156060 163863 169932 171955 176868 182070 192780 206346 212415 218484 221085 224910 234090 240737 254898 265302 269892 273105 283220 294780 309519 327726 337365 343910 364140 382347 397953 412692 424830 442170 449820 468180 481474 509796 515865 530604 546210 619038 637245 655452 663255 674730 687820 722211 764694 795906 819315 849660 884340 928557 962948 1031730 1092420 1147041 1203685 1238076 1274490 1326510 1349460 1444422 1529388 1547595 1591812 1638630 1857114 1911735 1989765 2063460 2166633 2294082 2407370 2548980 2653020 2785671 2888844 3095190 3277260 3611055 3714228 3823470 3979530 4333266 4588164 4642785 4814740 5571342 5735205 6190380 6499899 7222110 7646940 7959060 8666532 9285570 10833165 11142684 11470410 12999798 13928355 14444220 18571140 19499697 21666330 22940820 25999596 27856710 32499495 38999394 43332660 55713420 64998990 77998788 97498485 129997980 194996970 389993940
• Sum of all divisors σ(n): 1512098280
• Sum of proper divisors (its aliquot sum) s(n): 1122104340
• 389993940 is an abundant number, because the sum of its proper divisors (1122104340) is greater than itself. Its abundance is 732110400

Bases of 389993940

• Binary: 10111001111101101010111010100₂
• Hexadecimal: 0x173ED5D4
• Base-36: 6G6X90

Squares and roots of 389993940

• 389993940 squared (389993940²) is 152095273236723600
• 389993940 cubed (389993940³) is 59316234864966389454984000
• The square root of 389993940 is 19748.2642275213
• The cube root of 389993940 is 730.6105731789

Scales and comparisons

• 389,993,940 seconds is equal to 12 years, 20 weeks, 5 days, 19 hours, 39 minutes.
• To count from 1 to 389,993,940 would take you about eighteen 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 389993940 cubic inches would be around 60.9 feet tall.

Recreational maths with 389993940

• 389993940 backwards is 049399983
• 389993940 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 389993940's digits is 54
• More coming soon!