19909201920

Names of 19909201920

• Cardinal: 19909201920 can be written as Nineteen billion, nine hundred nine million, two hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.990920192 × 10¹⁰

Factors of 19909201920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 10494

Divisors of 19909201920

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 80 93 96 120 124 128 155 160 186 192 240 248 256 310 320 372 384 465 480 496 512 620 640 744 768 930 960 992 1024 1240 1280 1488 1536 1860 1920 1984 2048 2480 2560 2976 3072 3720 3840 3968 4096 4960 5120 5952 6144 7440 7680 7936 9920 10240 10453 11904 12288 14880 15360 15872 19840 20480 20906 23808 29760 30720 31359 31744 39680 41812 47616 52265 59520 61440 62718 63488 79360 83624 95232 104530 119040 125436 126976 156795 158720 167248 190464 209060 238080 250872 313590 317440 324043 334496 380928 418120 476160 501744 627180 634880 648086 668992 836240 952320 972129 1003488 1254360 1296172 1337984 1620215 1672480 1904640 1944258 2006976 2508720 2592344 2675968 3240430 3344960 3888516 4013952 4860645 5017440 5184688 5351936 6480860 6689920 7777032 8027904 9721290 10034880 10369376 10703872 12961720 13379840 15554064 16055808 19442580 20069760 20738752 21407744 25923440 26759680 31108128 32111616 38885160 40139520 41477504 42815488 51846880 53519360 62216256 64223232 77770320 80279040 82955008 103693760 107038720 124432512 128446464 155540640 160558080 165910016 207387520 214077440 248865024 311081280 321116160 331820032 414775040 497730048 622162560 642232320 663640064 829550080 995460096 1244325120 1327280128 1659100160 1990920192 2488650240 3318200320 3981840384 4977300480 6636400640 9954600960 19909201920
• Sum of all divisors σ(n): 65762852352
• Sum of proper divisors (its aliquot sum) s(n): 45853650432
• 19909201920 is an abundant number, because the sum of its proper divisors (45853650432) is greater than itself. Its abundance is 25944448512

Bases of 19909201920

• Binary: 10010100010101011100101000000000000₂
• Hexadecimal: 0x4A2AE5000
• Base-36: 959FAIO

Squares and roots of 19909201920

• 19909201920 squared (19909201920²) is 396376321091331686400
• 19909201920 cubed (19909201920³) is 7891536212914077306231717888000
• The square root of 19909201920 is 141099.9713678213
• The cube root of 19909201920 is 2710.3036528345

Scales and comparisons

• 19,909,201,920 seconds is equal to 633 years, 2 weeks, 4 days, 13 hours, 52 minutes.
• To count from 1 to 19,909,201,920 would take you about one thousand, two hundred sixty-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 19909201920 cubic inches would be around 225.9 feet tall.

Recreational maths with 19909201920

• 19909201920 backwards is 02910290991
• The number of decimal digits it has is: 11
• The sum of 19909201920's digits is 42
• More coming soon!