12155898720

Names of 12155898720

• Cardinal: 12155898720 can be written as Twelve billion, one hundred fifty-five million, eight hundred ninety-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.215589872 × 10¹⁰

Factors of 12155898720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 27765

Divisors of 12155898720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 131 140 160 168 210 224 240 262 280 336 393 420 480 524 560 655 672 786 840 917 1048 1120 1310 1572 1680 1834 1965 2096 2620 2751 3144 3360 3668 3930 4192 4585 5240 5502 6288 7336 7860 9170 10480 11004 12576 13755 14672 15720 18340 20960 22008 27510 27617 29344 31440 36680 44016 55020 55234 62880 73360 82851 88032 110040 110468 138085 146720 165702 193319 220080 220936 276170 331404 386638 414255 440160 441872 552340 579957 662808 773276 828510 883744 966595 1104680 1159914 1325616 1546552 1657020 1933190 2209360 2319828 2651232 2899785 3093104 3314040 3617827 3866380 4418720 4639656 5799570 6186208 6628080 7235654 7732760 9279312 10853481 11599140 13256160 14471308 15465520 18089135 18558624 21706962 23198280 25324789 28942616 30931040 36178270 43413924 46396560 50649578 54267405 57885232 72356540 75974367 86827848 92793120 101299156 108534810 115770464 126623945 144713080 151948734 173655696 202598312 217069620 253247890 289426160 303897468 347311392 379871835 405196624 434139240 506495780 578852320 607794936 759743670 810393248 868278480 1012991560 1215589872 1519487340 1736556960 2025983120 2431179744 3038974680 4051966240 6077949360 12155898720
• Sum of all divisors σ(n): 44096887296
• Sum of proper divisors (its aliquot sum) s(n): 31940988576
• 12155898720 is an abundant number, because the sum of its proper divisors (31940988576) is greater than itself. Its abundance is 19785089856

Bases of 12155898720

• Binary: 1011010100100011000100101101100000₂
• Hexadecimal: 0x2D48C4B60
• Base-36: 5L1B3HC

Squares and roots of 12155898720

• 12155898720 squared (12155898720²) is 147765873690897638400
• 12155898720 cubed (12155898720³) is 1796226994858864278277582848000
• The square root of 12155898720 is 110253.7923157295
• The cube root of 12155898720 is 2299.3002735973

Scales and comparisons

• 12,155,898,720 seconds is equal to 386 years, 27 weeks, 6 hours, 32 minutes.
• To count from 1 to 12,155,898,720 would take you about seven hundred seventy-three 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 12155898720 cubic inches would be around 191.6 feet tall.

Recreational maths with 12155898720

• 12155898720 backwards is 02789855121
• 12155898720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12155898720's digits is 48
• More coming soon!