18193129290

Names of 18193129290

• Cardinal: 18193129290 can be written as Eighteen billion, one hundred ninety-three million, one hundred twenty-nine thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.819312929 × 10¹⁰

Factors of 18193129290

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 671641

Divisors of 18193129290

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 43 45 63 70 86 90 105 126 129 210 215 258 301 315 387 430 602 630 645 774 903 1290 1505 1806 1935 2709 3010 3870 4515 5418 9030 13545 27090 671581 1343162 2014743 3357905 4029486 4701067 6044229 6715810 9402134 10073715 12088458 14103201 20147430 23505335 28206402 28877983 30221145 42309603 47010670 57755966 60442290 70516005 84619206 86633949 141032010 144389915 173267898 202145881 211548015 259901847 288779830 404291762 423096030 433169745 519803694 606437643 866339490 1010729405 1212875286 1299509235 1819312929 2021458810 2599018470 3032188215 3638625858 6064376430 9096564645 18193129290
• Sum of all divisors σ(n): 55316866176
• Sum of proper divisors (its aliquot sum) s(n): 37123736886
• 18193129290 is an abundant number, because the sum of its proper divisors (37123736886) is greater than itself. Its abundance is 18930607596

Bases of 18193129290

• Binary: 10000111100011001010001111101001010₂
• Hexadecimal: 0x43C651F4A
• Base-36: 8CVPWEI

Squares and roots of 18193129290

• 18193129290 squared (18193129290²) is 330989953362655904100
• 18193129290 cubed (18193129290³) is 6021743015217869121073141089000
• The square root of 18193129290 is 134881.9086831143
• The cube root of 18193129290 is 2630.0810689829

Scales and comparisons

• 18,193,129,290 seconds is equal to 578 years, 25 weeks, 1 day, 15 hours, 1 minute, 30 seconds.
• To count from 1 to 18,193,129,290 would take you about one thousand, one hundred fifty-six 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 18193129290 cubic inches would be around 219.2 feet tall.

Recreational maths with 18193129290

• 18193129290 backwards is 09292139181
• 18193129290 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18193129290's digits is 45
• More coming soon!