19791494640

Names of 19791494640

• Cardinal: 19791494640 can be written as Nineteen billion, seven hundred ninety-one million, four hundred ninety-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.979149464 × 10¹⁰

Factors of 19791494640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1019

Divisors of 19791494640

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 486 540 648 720 810 972 1009 1080 1215 1296 1620 1944 2018 2160 2430 3027 3240 3888 4036 4860 5045 6054 6480 8072 9081 9720 10090 12108 15135 16144 18162 19440 20180 24216 27243 30270 36324 40360 45405 48432 54486 60540 72648 80720 81729 90810 108972 121080 136215 145296 163458 181620 217944 242160 245187 272430 326916 363240 408645 435888 490374 544860 653832 726480 817290 980748 1018081 1089720 1225935 1307664 1634580 1961496 2036162 2179440 2451870 3054243 3269160 3922992 4072324 4903740 5090405 6108486 6538320 8144648 9162729 9807480 10180810 12216972 15271215 16289296 18325458 19614960 20361620 24433944 27488187 30542430 36650916 40723240 45813645 48867888 54976374 61084860 73301832 81446480 82464561 91627290 109952748 122169720 137440935 146603664 164929122 183254580 219905496 244339440 247393683 274881870 329858244 366509160 412322805 439810992 494787366 549763740 659716488 733018320 824645610 989574732 1099527480 1236968415 1319432976 1649291220 1979149464 2199054960 2473936830 3298582440 3958298928 4947873660 6597164880 9895747320 19791494640
• Sum of all divisors σ(n): 68996537064
• Sum of proper divisors (its aliquot sum) s(n): 49205042424
• 19791494640 is an abundant number, because the sum of its proper divisors (49205042424) is greater than itself. Its abundance is 29413547784

Bases of 19791494640

• Binary: 10010011011101010100011110111110000₂
• Hexadecimal: 0x49BAA3DF0
• Base-36: 93BCF00

Squares and roots of 19791494640

• 19791494640 squared (19791494640²) is 391703260085148729600
• 19791494640 cubed (19791494640³) is 7752392972445747025481209344000
• The square root of 19791494640 is 140682.2470676383
• The cube root of 19791494640 is 2704.9518017295

Scales and comparisons

• 19,791,494,640 seconds is equal to 629 years, 16 weeks, 5 hours, 24 minutes.
• To count from 1 to 19,791,494,640 would take you about one thousand, two hundred fifty-eight 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 19791494640 cubic inches would be around 225.4 feet tall.

Recreational maths with 19791494640

• 19791494640 backwards is 04649419791
• 19791494640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19791494640's digits is 54
• More coming soon!