1813912140

Names of 1813912140

• Cardinal: 1813912140 can be written as One billion, eight hundred thirteen million, nine hundred twelve thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.81391214 × 10⁹

Factors of 1813912140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7781

Divisors of 1813912140

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 211 228 285 380 422 570 633 844 1055 1140 1266 2110 2532 3165 4009 4220 6330 7541 8018 12027 12660 15082 16036 20045 22623 24054 30164 37705 40090 45246 48108 60135 75410 80180 90492 113115 120270 143279 150820 226230 240540 286558 429837 452460 573116 716395 859674 1432790 1591151 1719348 2149185 2865580 3182302 4298370 4773453 6364604 7955755 8596740 9546906 15911510 19093812 23867265 30231869 31823020 47734530 60463738 90695607 95469060 120927476 151159345 181391214 302318690 362782428 453478035 604637380 906956070 1813912140
• Sum of all divisors σ(n): 5372317440
• Sum of proper divisors (its aliquot sum) s(n): 3558405300
• 1813912140 is an abundant number, because the sum of its proper divisors (3558405300) is greater than itself. Its abundance is 1744493160

Bases of 1813912140

• Binary: 1101100000111100001101001001100₂
• Hexadecimal: 0x6C1E1A4C
• Base-36: TZYFKC

Squares and roots of 1813912140

• 1813912140 squared (1813912140²) is 3290277251639379600
• 1813912140 cubed (1813912140³) is 5968273850714505558508344000
• The square root of 1813912140 is 42590.0474289475
• The cube root of 1813912140 is 1219.5663019927

Scales and comparisons

• 1,813,912,140 seconds is equal to 57 years, 35 weeks, 1 day, 8 hours, 29 minutes.
• To count from 1 to 1,813,912,140 would take you about one hundred fifteen 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 1813912140 cubic inches would be around 101.6 feet tall.

Recreational maths with 1813912140

• 1813912140 backwards is 0412193181
• 1813912140 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1813912140's digits is 30
• More coming soon!