128125200

Names of 128125200

• Cardinal: 128125200 can be written as One hundred twenty-eight million, one hundred twenty-five thousand, two hundred.

Scientific notation

• Scientific notation: 1.281252 × 10⁸

Factors of 128125200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2196

Divisors of 128125200

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 35 40 42 48 49 50 56 60 70 75 80 84 98 100 105 112 120 140 147 150 168 175 196 200 210 240 245 280 294 300 336 350 392 400 420 490 525 560 588 600 700 735 784 840 980 1050 1176 1200 1225 1400 1470 1680 1960 2100 2179 2352 2450 2800 2940 3675 3920 4200 4358 4900 5880 6537 7350 8400 8716 9800 10895 11760 13074 14700 15253 17432 19600 21790 26148 29400 30506 32685 34864 43580 45759 52296 54475 58800 61012 65370 76265 87160 91518 104592 106771 108950 122024 130740 152530 163425 174320 183036 213542 217900 228795 244048 261480 305060 320313 326850 366072 381325 427084 435800 457590 522960 533855 610120 640626 653700 732144 762650 854168 871600 915180 1067710 1143975 1220240 1281252 1307400 1525300 1601565 1708336 1830360 2135420 2287950 2562504 2614800 2669275 3050600 3203130 3660720 4270840 4575900 5125008 5338550 6101200 6406260 8007825 8541680 9151800 10677100 12812520 16015650 18303600 21354200 25625040 32031300 42708400 64062600 128125200
• Sum of all divisors σ(n): 477655440
• Sum of proper divisors (its aliquot sum) s(n): 349530240
• 128125200 is an abundant number, because the sum of its proper divisors (349530240) is greater than itself. Its abundance is 221405040

Bases of 128125200

• Binary: 111101000110000100100010000₂
• Hexadecimal: 0x7A30910
• Base-36: 24A61C

Squares and roots of 128125200

• 128125200 squared (128125200²) is 16416066875040000
• 128125200 cubed (128125200³) is 2103311851577875008000000
• The square root of 128125200 is 11319.2402571905
• The cube root of 128125200 is 504.1326811171

Scales and comparisons

• 128,125,200 seconds is equal to 4 years, 3 weeks, 5 days, 22 hours, 20 minutes.
• To count from 1 to 128,125,200 would take you about 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 128125200 cubic inches would be around 42 feet tall.

Recreational maths with 128125200

• 128125200 backwards is 002521821
• 128125200 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 128125200's digits is 21
• More coming soon!