1421191640

Names of 1421191640

• Cardinal: 1421191640 can be written as One billion, four hundred twenty-one million, one hundred ninety-one thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.42119164 × 10⁹

Factors of 1421191640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3701

Divisors of 1421191640

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 11 19 20 22 38 40 44 47 55 76 88 94 95 110 152 188 190 209 220 235 376 380 418 440 470 517 760 836 893 940 1034 1045 1672 1786 1880 2068 2090 2585 3572 3617 4136 4180 4465 5170 7144 7234 8360 8930 9823 10340 14468 17860 18085 19646 20680 28936 35720 36170 39292 39787 49115 68723 72340 78584 79574 98230 137446 144680 159148 169999 196460 198935 274892 318296 339998 343615 392920 397870 549784 679996 687230 755953 795740 849995 1359992 1374460 1511906 1591480 1699990 1869989 2748920 3023812 3229981 3399980 3739978 3779765 6047624 6459962 6799960 7479956 7559530 9349945 12919924 14959912 15119060 16149905 18699890 25839848 30238120 32299810 35529791 37399780 64599620 71059582 74799560 129199240 142119164 177648955 284238328 355297910 710595820 1421191640
• Sum of all divisors σ(n): 3751142400
• Sum of proper divisors (its aliquot sum) s(n): 2329950760
• 1421191640 is an abundant number, because the sum of its proper divisors (2329950760) is greater than itself. Its abundance is 908759120

Bases of 1421191640

• Binary: 1010100101101011010100111011000₂
• Hexadecimal: 0x54B5A9D8
• Base-36: NI52HK

Squares and roots of 1421191640

• 1421191640 squared (1421191640²) is 2019785677605889600
• 1421191640 cubed (1421191640³) is 2870502519605225514282944000
• The square root of 1421191640 is 37698.6954681459
• The cube root of 1421191640 is 1124.3051880845

Scales and comparisons

• 1,421,191,640 seconds is equal to 45 years, 9 weeks, 5 days, 23 hours, 27 minutes, 20 seconds.
• To count from 1 to 1,421,191,640 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 1421191640 cubic inches would be around 93.7 feet tall.

Recreational maths with 1421191640

• 1421191640 backwards is 0461911241
• The number of decimal digits it has is: 10
• The sum of 1421191640's digits is 29
• More coming soon!