385442640

Names of 385442640

• Cardinal: 385442640 can be written as Three hundred eighty-five million, four hundred forty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.8544264 × 10⁸

Factors of 385442640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1249

Divisors of 385442640

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 41 44 45 48 55 60 66 72 80 82 88 90 99 110 120 123 132 144 164 165 176 180 198 205 220 240 246 264 328 330 360 369 396 410 440 451 492 495 528 615 656 660 720 738 792 820 880 902 984 990 1187 1230 1320 1353 1476 1584 1640 1804 1845 1968 1980 2255 2374 2460 2640 2706 2952 3280 3561 3608 3690 3960 4059 4510 4748 4920 5412 5904 5935 6765 7122 7216 7380 7920 8118 9020 9496 9840 10683 10824 11870 13057 13530 14244 14760 16236 17805 18040 18992 20295 21366 21648 23740 26114 27060 28488 29520 32472 35610 36080 39171 40590 42732 47480 48667 52228 53415 54120 56976 64944 65285 71220 78342 81180 85464 94960 97334 104456 106830 108240 117513 130570 142440 146001 156684 162360 170928 194668 195855 208912 213660 235026 243335 261140 284880 292002 313368 324720 389336 391710 427320 438003 470052 486670 522280 535337 584004 587565 626736 730005 778672 783420 854640 876006 940104 973340 1044560 1070674 1168008 1175130 1460010 1566840 1606011 1752012 1880208 1946680 2141348 2190015 2336016 2350260 2676685 2920020 3133680 3212022 3504024 3893360 4282696 4380030 4700520 4818033 5353370 5840040 6424044 7008048 8030055 8565392 8760060 9401040 9636066 10706740 11680080 12848088 16060110 17520120 19272132 21413480 24090165 25696176 32120220 35040240 38544264 42826960 48180330 64240440 77088528 96360660 128480880 192721320 385442640
• Sum of all divisors σ(n): 1447782336
• Sum of proper divisors (its aliquot sum) s(n): 1062339696
• 385442640 is an abundant number, because the sum of its proper divisors (1062339696) is greater than itself. Its abundance is 676897056

Bases of 385442640

• Binary: 10110111110010110001101010000₂
• Hexadecimal: 0x16F96350
• Base-36: 6DHDG0

Squares and roots of 385442640

• 385442640 squared (385442640²) is 148566028730169600
• 385442640 cubed (385442640³) is 57263682328072418271744000
• The square root of 385442640 is 19632.6931417979
• The cube root of 385442640 is 727.7573256279

Scales and comparisons

• 385,442,640 seconds is equal to 12 years, 13 weeks, 2 days, 3 hours, 24 minutes.
• To count from 1 to 385,442,640 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 385442640 cubic inches would be around 60.6 feet tall.

Recreational maths with 385442640

• 385442640 backwards is 046244583
• 385442640 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 385442640's digits is 36
• More coming soon!