642825146890

Names of 642825146890

• Cardinal: 642825146890 can be written as Six hundred forty-two billion, eight hundred twenty-five million, one hundred forty-six thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 6.4282514689 × 10¹¹

Factors of 642825146890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 331

Divisors of 642825146890

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 5 10 23 46 73 97 115 131 146 194 230 262 365 485 529 655 730 970 1058 1310 1679 2231 2645 3013 3358 4462 5290 6026 7081 8395 9563 11155 12707 14162 15065 16790 17161 19126 22310 25414 30130 34322 35405 38617 47815 51313 63535 69299 70810 77234 85805 95630 102626 127070 138598 162863 171610 193085 219949 256565 292261 325726 346495 386170 394703 439898 513130 584522 692990 789406 814315 927611 1099745 1252753 1461305 1628630 1664617 1855222 1973515 2199490 2505506 2922610 3329234 3745849 3947030 4638055 5058827 6263765 6722003 7491698 8323085 9078169 9276110 10117654 12527530 13444006 16646170 18156338 18729245 21335053 25294135 28813319 33610015 37458490 38286191 42670106 45390845 50588270 57626638 67220030 76572382 90781690 106675265 121517041 144066595 191430955 213350530 243034082 288133190 382861910 490706219 607585205 662706337 880582393 981412438 1215170410 1325412674 1761164786 2453531095 2794891943 3313531685 4402911965 4907062190 5589783886 6627063370 8805823930 13974459715 27948919430 64282514689 128565029378 321412573445 642825146890
• Sum of all divisors σ(n): 1248319553544
• Sum of proper divisors (its aliquot sum) s(n): 605494406654
• 642825146890 is a deficient number, because the sum of its proper divisors (605494406654) is less than itself. Its deficiency is 37330740236

Bases of 642825146890

• Binary: 1001010110101011010111010101001000001010₂
• Hexadecimal: 0x95AB5D520A
• Base-36: 87B5HTSA

Squares and roots of 642825146890

• 642825146890 squared (642825146890²) is 413224169474150076672100
• 642825146890 cubed (642825146890³) is 265630887440718777094647444864769000
• The square root of 642825146890 is 801763.7724978599
• The cube root of 642825146890 is 8630.4005525475

Scales and comparisons

• 642,825,146,890 seconds is equal to 20,439 years, 44 weeks, 1 day, 20 hours, 48 minutes, 10 seconds.
• To count from 1 to 642,825,146,890 would take you about forty thousand, eight hundred seventy-nine 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 642825146890 cubic inches would be around 719.2 feet tall.

Recreational maths with 642825146890

• 642825146890 backwards is 098641528246
• The number of decimal digits it has is: 12
• The sum of 642825146890's digits is 55
• More coming soon!