15138080640

Names of 15138080640

• Cardinal: 15138080640 can be written as Fifteen billion, one hundred thirty-eight million, eighty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.513808064 × 10¹⁰

Factors of 15138080640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2628149

Divisors of 15138080640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 2628139 5256278 7884417 10512556 13140695 15768834 21025112 23653251 26281390 31537668 39422085 42050224 47306502 52562780 63075336 78844170 84100448 94613004 105125560 118266255 126150672 157688340 168200896 189226008 210251120 236532510 252301344 315376680 336401792 378452016 420502240 473065020 504602688 630753360 756904032 841004480 946130040 1009205376 1261506720 1513808064 1682008960 1892260080 2523013440 3027616128 3784520160 5046026880 7569040320 15138080640
• Sum of all divisors σ(n): 52273704600
• Sum of proper divisors (its aliquot sum) s(n): 37135623960
• 15138080640 is an abundant number, because the sum of its proper divisors (37135623960) is greater than itself. Its abundance is 21997543320

Bases of 15138080640

• Binary: 1110000110010011001100011110000000₂
• Hexadecimal: 0x3864CC780
• Base-36: 6YCTLS0

Squares and roots of 15138080640

• 15138080640 squared (15138080640²) is 229161485463142809600
• 15138080640 cubed (15138080640³) is 3469065046523243599560966144000
• The square root of 15138080640 is 123036.9076334415
• The cube root of 15138080640 is 2473.7564417033

Scales and comparisons

• 15,138,080,640 seconds is equal to 481 years, 17 weeks, 6 days, 6 hours, 24 minutes.
• To count from 1 to 15,138,080,640 would take you about nine hundred sixty-two 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 15138080640 cubic inches would be around 206.1 feet tall.

Recreational maths with 15138080640

• 15138080640 backwards is 04608083151
• 15138080640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 15138080640's digits is 36
• More coming soon!