1868420190

Names of 1868420190

• Cardinal: 1868420190 can be written as One billion, eight hundred sixty-eight million, four hundred twenty thousand, one hundred ninety.

Scientific notation

• Scientific notation: 1.86842019 × 10⁹

Factors of 1868420190

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 491

Divisors of 1868420190

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 7 10 13 14 15 17 21 26 30 34 35 39 42 51 65 70 78 85 91 102 105 119 127 130 170 182 195 210 221 238 254 255 273 317 357 381 390 442 455 510 546 595 634 635 663 714 762 889 910 951 1105 1190 1270 1326 1365 1547 1585 1651 1778 1785 1902 1905 2159 2210 2219 2667 2730 3094 3170 3302 3315 3570 3810 4121 4318 4438 4445 4641 4755 4953 5334 5389 6477 6630 6657 7735 8242 8255 8890 9282 9510 9906 10778 10795 11095 11557 12363 12954 13314 13335 15113 15470 16167 16510 20605 21590 22190 23114 23205 24726 24765 26670 26945 28067 28847 30226 32334 32385 33285 34671 37723 40259 41210 45339 46410 49530 53890 56134 57694 57785 61815 64770 66570 69342 70057 75446 75565 80518 80835 84201 86541 90678 113169 115570 120777 123630 140114 140335 144235 151130 161670 168402 173082 173355 188615 196469 201295 210171 226338 226695 241554 280670 281813 288470 346710 350285 377230 392938 402590 420342 421005 432705 453390 490399 523367 563626 565845 589407 603885 684403 700570 842010 845439 865410 980798 982345 1046734 1050855 1131690 1178814 1207770 1368806 1409065 1471197 1570101 1690878 1964690 2053209 2101710 2451995 2616835 2818130 2942394 2947035 3140202 3422015 3663569 4106418 4227195 4790821 4903990 5233670 5894070 6844030 7327138 7355985 7850505 8454390 8897239 9581642 10266045 10990707 14372463 14711970 15701010 17794478 18317845 20532090 21981414 23954105 26691717 28744926 36635690 44486195 47908210 53383434 54953535 62280673 71862315 88972390 109907070 124561346 133458585 143724630 186842019 266917170 311403365 373684038 622806730 934210095 1868420190
• Sum of all divisors σ(n): 5908267008
• Sum of proper divisors (its aliquot sum) s(n): 4039846818
• 1868420190 is an abundant number, because the sum of its proper divisors (4039846818) is greater than itself. Its abundance is 2171426628

Bases of 1868420190

• Binary: 1101111010111011101010001011110₂
• Hexadecimal: 0x6F5DD45E
• Base-36: UWEQ8U

Squares and roots of 1868420190

• 1868420190 squared (1868420190²) is 3490994006399636100
• 1868420190 cubed (1868420190³) is 6522643684726069297892859000
• The square root of 1868420190 is 43225.2263151971
• The cube root of 1868420190 is 1231.6619282195

Scales and comparisons

• 1,868,420,190 seconds is equal to 59 years, 21 weeks, 2 days, 5 hours, 36 minutes, 30 seconds.
• To count from 1 to 1,868,420,190 would take you about one hundred 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 1868420190 cubic inches would be around 102.6 feet tall.

Recreational maths with 1868420190

• 1868420190 backwards is 0910248681
• 1868420190 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1868420190's digits is 39
• More coming soon!