389140840

Names of 389140840

• Cardinal: 389140840 can be written as Three hundred eighty-nine million, one hundred forty thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.8914084 × 10⁸

Factors of 389140840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 149

Divisors of 389140840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 37 40 41 44 53 55 74 82 88 106 110 121 148 164 185 205 212 220 242 265 296 328 370 407 410 424 440 451 484 530 583 605 740 814 820 902 968 1060 1166 1210 1480 1517 1628 1640 1804 1961 2035 2120 2173 2255 2332 2420 2915 3034 3256 3608 3922 4070 4346 4477 4510 4664 4840 4961 5830 6068 6413 7585 7844 8140 8692 8954 9020 9805 9922 10865 11660 12136 12826 15170 15688 16280 16687 17384 17908 18040 19610 19844 21571 21730 22385 23320 23903 24805 25652 30340 32065 33374 35816 39220 39688 43142 43460 44770 47806 49610 51304 60680 64130 66748 78440 80401 83435 86284 86920 89540 95612 99220 107855 119515 128260 133496 160802 166870 172568 179080 183557 191224 198440 215710 237281 239030 256520 262933 321604 333740 367114 402005 431420 474562 478060 525866 643208 667480 734228 804010 862840 884411 917785 949124 956120 1051732 1186405 1314665 1468456 1608020 1768822 1835570 1898248 2103464 2372810 2629330 3216040 3537644 3671140 4422055 4745620 5258660 7075288 7342280 8844110 9491240 9728521 10517320 17688220 19457042 35376440 38914084 48642605 77828168 97285210 194570420 389140840
• Sum of all divisors σ(n): 1031622480
• Sum of proper divisors (its aliquot sum) s(n): 642481640
• 389140840 is an abundant number, because the sum of its proper divisors (642481640) is greater than itself. Its abundance is 253340800

Bases of 389140840

• Binary: 10111001100011101000101101000₂
• Hexadecimal: 0x1731D168
• Base-36: 6FOMZS

Squares and roots of 389140840

• 389140840 squared (389140840²) is 151430593355905600
• 389140840 cubed (389140840³) is 58927828300215524144704000
• The square root of 389140840 is 19726.6530359309
• The cube root of 389140840 is 730.0774547203

Scales and comparisons

• 389,140,840 seconds is equal to 12 years, 19 weeks, 2 days, 22 hours, 40 minutes, 40 seconds.
• To count from 1 to 389,140,840 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 389140840 cubic inches would be around 60.8 feet tall.

Recreational maths with 389140840

• 389140840 backwards is 048041983
• 389140840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 389140840's digits is 37
• More coming soon!