394407420

Names of 394407420

• Cardinal: 394407420 can be written as Three hundred ninety-four million, four hundred seven thousand, four hundred twenty.

Scientific notation

• Scientific notation: 3.9440742 × 10⁸

Factors of 394407420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 610

Divisors of 394407420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 31 33 37 44 55 60 62 66 74 93 110 111 124 132 148 155 165 185 186 220 222 310 330 341 370 372 407 444 465 521 555 620 660 682 740 814 930 1023 1042 1110 1147 1221 1364 1563 1628 1705 1860 2035 2046 2084 2220 2294 2442 2605 3126 3410 3441 4070 4092 4588 4884 5115 5210 5731 5735 6105 6252 6820 6882 7815 8140 10230 10420 11462 11470 12210 12617 13764 15630 16151 17193 17205 19277 20460 22924 22940 24420 25234 28655 31260 32302 34386 34410 37851 38554 48453 50468 57310 57831 63085 64604 68772 68820 75702 77108 80755 85965 96385 96906 114620 115662 126170 151404 161510 171930 177661 189255 192770 193812 212047 231324 242265 252340 289155 323020 343860 355322 378510 385540 424094 484530 532983 578310 597587 636141 710644 757020 848188 888305 969060 1060235 1065966 1156620 1195174 1272282 1776610 1792761 2120470 2131932 2390348 2544564 2664915 2987935 3180705 3553220 3585522 4240940 5329830 5975870 6361410 6573457 7171044 8963805 10659660 11951740 12722820 13146914 17927610 19720371 26293828 32867285 35855220 39440742 65734570 78881484 98601855 131469140 197203710 394407420
• Sum of all divisors σ(n): 1279660032
• Sum of proper divisors (its aliquot sum) s(n): 885252612
• 394407420 is an abundant number, because the sum of its proper divisors (885252612) is greater than itself. Its abundance is 490845192

Bases of 394407420

• Binary: 10111100000100010110111111100₂
• Hexadecimal: 0x17822DFC
• Base-36: 6ITIPO

Squares and roots of 394407420

• 394407420 squared (394407420²) is 155557212951056400
• 394407420 cubed (394407420³) is 61352919022416740998488000
• The square root of 394407420 is 19859.6933511069
• The cube root of 394407420 is 733.3562972607

Scales and comparisons

• 394,407,420 seconds is equal to 12 years, 28 weeks, 21 hours, 37 minutes.
• To count from 1 to 394,407,420 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 394407420 cubic inches would be around 61.1 feet tall.

Recreational maths with 394407420

• 394407420 backwards is 024704493
• 394407420 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 394407420's digits is 33
• More coming soon!