1421146640

Names of 1421146640

• Cardinal: 1421146640 can be written as One billion, four hundred twenty-one million, one hundred forty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.42114664 × 10⁹

Factors of 1421146640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1554

Divisors of 1421146640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 719 797 1240 1438 1594 2480 2876 3188 3595 3985 5752 6376 7190 7970 11504 12752 14380 15940 22289 24707 28760 31880 44578 49414 57520 63760 89156 98828 111445 123535 178312 197656 222890 247070 356624 395312 445780 494140 573043 891560 988280 1146086 1783120 1976560 2292172 2865215 4584344 5730430 9168688 11460860 17764333 22921720 35528666 45843440 71057332 88821665 142114664 177643330 284229328 355286660 710573320 1421146640
• Sum of all divisors σ(n): 3419781120
• Sum of proper divisors (its aliquot sum) s(n): 1998634480
• 1421146640 is an abundant number, because the sum of its proper divisors (1998634480) is greater than itself. Its abundance is 577487840

Bases of 1421146640

• Binary: 1010100101101001111101000010000₂
• Hexadecimal: 0x54B4FA10
• Base-36: NI43RK

Squares and roots of 1421146640

• 1421146640 squared (1421146640²) is 2019657772383289600
• 1421146640 cubed (1421146640³) is 2870229857172396807186944000
• The square root of 1421146640 is 37698.0986257927
• The cube root of 1421146640 is 1124.2933214541

Scales and comparisons

• 1,421,146,640 seconds is equal to 45 years, 9 weeks, 5 days, 10 hours, 57 minutes, 20 seconds.
• To count from 1 to 1,421,146,640 would take you about ninety 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 1421146640 cubic inches would be around 93.7 feet tall.

Recreational maths with 1421146640

• 1421146640 backwards is 0466411241
• The number of decimal digits it has is: 10
• The sum of 1421146640's digits is 29
• More coming soon!